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A Gilt Bronze and White Marble Striking Mantel Clock, Henry Voisin, A Paris, circa 1880, urn finial flanked by two maiden figures in robes, central panel with cherubs and scientific instruments, white marble base with applied gilt bronze floral mounts, 5-inch enamel dial with Arabic and Roman numerals, twin barrel movement striking on a bell, backplate stamped Etienne Maxant Paris and numbered 17142, 56cm high 10.10.14, Gilding is faded, marble base with small chips, dial with one minor chip around winding hole, later hour hand, movement needs cleaning, strike is working.

A Gilt Bronze and White Marble Striking Mantel Clock, circa 1880, surmounted by a winged cherub alongside scientific instruments, white marble base with applied floral and scroll mounts, 3-1/2-inch enamel dial with Roman numerals, twin barrel movement with outside countwheel striking on a bell, backplate stamped Bazelaire de Paris, 51cm high 10.10.14, Gilding faded, marble base with chips and the case back marble with a crack, dial with hairline cracks, minute hand broken, movement needs cleaning, pendulum is missing.

Moscardo Lodovico. Note overo Memorie del museo del conte Lodovico Moscardo, nobile veronese . In Verona: per Andrea Rossi, 1672. In-folio (mm 297x201). Pagine [16], 488, senza la carta χ1 contenente l`errata. Antiporta incisa in rame, frontespizio in rosso e nero, numerose illustrazioni calcografiche e xilografiche anche a piena pagina lungo il testo, capilettera, testatine e finalini xilografici. Ottimo esemplare. Legatura coeva in pergamena, titoli manoscritti al dorso a cinque nervi, tagli spruzzati, abrasioni agli angoli e minime lacune alla cuffia superiore. Al frontespizio nota di possesso manoscritta `di Gio Adolfo Gaap`.  Seconda edizione, accresciuta rispetto alla prima del 1656, di questo catalogo in cui il conte veronese Lodovico Moscardo elencò e descrisse gli oggetti raccolti nel suo gabinetto di curiosità, non solo opere d`arte e antichità (armi, monete, iscrizioni, orologi, strumenti musicali, terracotte, oggetti votivi, amuleti), ma anche coralli, conchiglie, minerali, fossili, gemme e altre tipologie di rarità concernenti il mondo naturale. Il Museo di Moscardo incorporò numerose collezione precedenti, fra cui la celebre raccolta del farmacista e botanico Francesco Calzolari. ""The catalogues of seventeenth-century collections such as those of the Veronese noble Lodovico Moscardo [...] were all models of wit and persuasion; dwarfs, chameleons, birds of paradise, and abnormal trees formed by nature happily coexisted alongside mathematical instruments..."" (P. Findlen, Possessing Nature. Museums, collecting, and scientific culture in early modern Italy, Berkeley-Los Angeles 1994, p. 42). Cicognara, 3412; Graesse II, 613; Grinke, From Wunderkammer to Museum, n. 23; Nissen, 2898.

Two microscopes, a table lathe, a Sykes hydrometer and other scientific instruments and tools

A quantity of engineers drawing aids and scientific instruments, including; a brass cased pocket barometer, an early 20th century pocket compass by Barkers, another Barkers military issue compass, a compass/clinometer compendium and sundry.

Various Scientific Instruments including two military boxwood sighting levels, inclinometer, compass, rules and others (qty)

Collection of scientific instruments; coins; pen knives and other items. Condition report: see terms and conditions

A collection of assorted scientific and surveyor`s instruments and related items to include a Fuller pattern cylindrical slide rule calculator by Stanley, London numbered `4976 22`; a patinated brass marine sighting compass, probably French late19th century; a surveyor`s sight inscribed `E. R. WATTS & SON, LONDON` and fifteen other items, (18)

Collection of scientific instruments; coins; pen knives and other items. Condition report: see terms and conditions

Scientific Instruments - a Victorian The Boy's Friend Giant Telescope, patent design, fully extended 99cm

Scientific Instruments - an Oertling set of scientist's precision scales, behind a glazed pine case, with cased weights, c.1960

Scientific Instruments - a pair of early 20th century field glasses, cased; an Ensign camera, cased; other cameras, Olympus; various others; an early 20th century Tema spirit measure; a late 19th century/early 20th century pair of precision scales; etc (3 boxes)

FOUR BRASS SCIENTIFIC INSTRUMENTS, etc

A George II brass pocket sundial, I. Coggs, second quarter of the 18th century, The shallow cylindrical glazed case enclosing compass with rosette-centred eight-point compass rose annotated NORTH, nne, NE, ene, EAST, ese, SE, sse, SOUTH, ssw, SW, wsw, WEST, wnw, NW and nnw within outer track for degrees divided into two degree intervals, the blued steel pointer with scrolled arrow-tip pointer for south opposing integral pierced ‘N’ for north, the top applied with narrow Roman numeral chapter ring annotated III-XII-VIII divided to ten minute intervals with cruciform half markers and signed I Coggs Fecit to the vacant space between VIII and III, the centre with offset herringbone engraved rail fitted with pivot to take the hinged scroll-pierced gnomen set at approximately 50 degrees when raised, with slightly convex snap-on cover with delicate cavetto moulded edge, diameter 8cm (3.25ins approx.). A John Coggs is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from ‘Globe & Sun against St. Dunstan’s Church in Fleet Street’ 1718-33. He is Known to have sold universal equinoctial ring dials and advertised a full range of instruments. The name of the business was changed to ‘Coggs & Wyeth’ when John and William Wyeth joined the business in 1733 later becoming ‘Wright & Wyeth’ in 1740. A second John Coggs is recorded as apprenticed to Benjamin Cole in 1759 but there appears to be no subsequent record of him setting up in business.

A fine George III mahogany bowfronted mercury stick barometer, Troughton, London, circa 1820, With swan neck pediment above silvered vernier scale calibrated in barometric inches and with the usual weather observations beneath signature Troughton, London to upper margin within moulded surround for the curved glass, the flame figured trunk of bowed profile and with ebony strung edges with convex throat moulding and vernier adjustment screw to upper section, the base with turned ebony half vase cistern cover flanked by lozenge inlaid canted angles with level adjustment to the cavetto moulded underside, (glass lacking), 100cm (39.5ins) high. The current lot was probably made by Edward Troughton who is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as first working in partnership with his brother, John from several addresses in London (including Queen’s Square, Bartholemew and 136 Fleet Street) from 1788 until John’s death in 1804. Edward continued alone from their Fleet Street address until 1826 when he formed a partnership with William Simms which lasted until after Troughton’s death in 1831. Edward Troughton was apparently quite a character choosing to live a semi-reclusive life and was characterised by his snuff-stained wig and ear trumpet! However his skill both in the manufacture and design of fine instruments led him to be awarded lucrative contracts from The East India Company, The Board of Ordnance, the Royal Observatory and The Board of Longitude.

A very rare Victorian rosewood mercury ‘Patent Compensating Portable Barometer’ or mercury sympiesometer, William Harris and Son, London, mid 19th century, The rectangular silvered scale applied with short U-shaped mercury tube terminating with open bulb to left hand column opposing sealed bulb to the right, the centre with mercury tube Fahrenheit and Reaumer scale thermometer and with engraved inscription Harris’s Patent Compensating Portable Barometer, the upper margin signed WILL.’M HARRIS & SON, 50 High Holborn, London, above right hand side with engraved vertical scale for degrees Fahrenheit ranging between 20 and 120 set behind slide with compressed vernier scale annotated for barometric inches and with the usual weather observations, the upper edge of the slide fitted with angled steel pointer for calibration against the temperature scale behind and with adjustment by rack and pinion to a knurled brass knob fitted to the right hand side of the case, the vernier with independent adjustment via friction slide to a smaller secondary brass knob to the exterior, the lower edge with engraved serial number 284 over recessed circular level recording disc engraved with barometric scale visible through a semi-circular aperture in the plate and manually adjusted via projecting rim to the base, the case with shaped upstand to the cavetto moulded cornice above moulded surround to the glazed front aperture, 33cm (13ins) high. Many makers with the surname Harris have worked in the London instrument trade since the middle of the 17th century, however this branch of the family can be traced back to Richard Harris who is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from several addresses in London circa 1710-1810. His son, William, was apprenticed to the clockmaker Joseph Robinson and gained his freedom of the Clockmakers’ Company in 1796. William set up business first at 47 High Holborn, London in 1805 before moving to a couple of doors down to number 50 in 1815. The business became ‘William Harris & Company’ in around 1813 before being renamed ‘William Harris & Son’ in 1841 when William Harris is believed to have taken in his son, Richard Joshua, into partnership. The business is recorded working from 50 High Holborn until around 1855. The design of current lot was described in the 1851 publication by Adolphus Oliver Harris A Treatise on the Patent Compensation Portable Barometer and was developed by William Harris and Son as an improvement on the sympiesometer invented by Alexander Adie of Edinburgh in 1818 (which in turn was essentially an improved version of Robert Hooke’s thermobarometer which was subject of a paper presented to the Royal Society in 1668). Both instruments essentially work in the same way with a syphon tube filled with liquid open to the air at one end and with trapped gas at the other (sulphuric acid and hydrogen were used in the sympiesometer). As barometric pressure increases the liquid will be forced down the tube causing the gas to be compressed, resulting in a change in level in the tube. Unfortunately the volume of the gas changes with temperature so before a reliable reading can be taken the instrument would first need to be calibrated by adjusting the position of the movable barometer scale in relation to the temperature scale behind to reflect the reading provided by the thermometer. The sympiesometer was conceived as an alternative to the mercury marine barometer as it was smaller and less susceptible to the motion of a vessel at sea.

A PARCEL OF SCIENTIFIC INSTRUMENTS, to include weights, precision tools etc

Hogg: The Microscope 1 volume together with two sets of scientific scales; two pairs of binoculars; two telescopes and two other instruments. Condition report: see terms and conditions.

Beck London microscope and two other scientific instruments by Cargory and A.G. Thornton. Condition report: see terms and conditions.

Five boxes of various scientific and other instruments to include condensing tubes, electronic thermometer, lenses, etc, together with a set of scales, an oscilloscope, a multimeter electronic G Marconi radiogram, etc

Bennion, E., Antique Medical Instruments, Sotheby`s, 1979, hard bound with dust wrapper, plus seven further publications on medical and scientific interests. (8)

A quantity of scientific instruments to include slide rule, gallon measure, thermometer, mamometer etc

A large collection of antique reference books and auction catalogues including a good assortment of specialist catalogues from Christie`s and Sotheby`s with subjects including Fine Toys, Scientific Instruments, Decorative Arts etc (four boxes)

A group of reproduction scientific type instruments, each bearing the name of Dolland in a fitted case.

Quantity Of Scientific Instruments including a case balance, Vernier gauge (boxed) Astro compass, Universal Avometer, a quantity of glassware and other items (qty)

CONTRUMENTS LTD. LONDON `CONSTRUMENTS NO. 100 SET`. CHILD`S CONSTRUCTION OUTFIT FOR Scientific optical instruments in original black fabric clad box with hinged top and fall front and interior fitted tray and compartments appears mainly complete with original instruction booklet, the box 13"" (33cm) x 8 1/2"" (21.5cm) x 3 1/2"" (9cm) high. (Box soiled and torn front edge)

Various engineering or scientific instruments, to include a timing machine made by the Foster Instrument Company in Letchworth England, a gauge and a Prior optical sight for a microscope

A selection of scientific instruments, including a small microscope in fitted box and others (parcel)

A collection of scientific instruments, to include a brass microscope on associated stand, a small amount of slides and a small boxwood rule (AF) £35-50

Two 19th century cases of assorted scientific instruments - larger case W21cm

Box of Scientific Instruments, etc

A box of scientific instruments

"Photographic Books: Deter­mination of the Sensitivity of Photographic Plates by Hurter & Driffield;, Patent Abridgements - `Group XX Photography, Scientific Instruments` 1937 & 1938, Year-Book of Photography & Photographic News Almanac 1887 and `The Photographic Journal` 1916, including `Journal of the Royal Photographic Society`, hard covers, 261pp Determinationof the Sensitivity of Photographic Plates by Hurter & Driffield; typed, annotated & bound in hard covers, from 1890 article in the Journal of the Soc. Of Chemical Industry, Patent Abridgements - ‘Group XX Photography, Scientific Instruments’ 1937 & 1938 Nos.440,001 – 480,001 including Noel Pemberton-Billing No. 478,342 for a feature on his Compass camera and Year-Book of Photography & Photographic News Almanac 1887, re-bound in hard covers, Woodbury type facing title page, 250pp of which 140 advertisements and ‘The Photographic Journal’ 1916 includes ‘Journal of the Royal Photographic Society’ with a listing of members 160 x234mm, hard covers, 261pp"

Great Selection of Microscope related Books: To include becks and Watson Catalogues, Scientific Instruments by Beck, Objects of Microscopes by Wood, Microbiology by Marshall and more (30)

HOROLOGY. – Giampiero NEGRETTI and Paolo DE VECCHI. Patek Philippe. Cologne: Könemann, 1999. 4to (330 x 238mm.) Numerous colour illustrations, many full-page. Original cloth, dust-jacket (slightly soiled). – And ten other volumes on clocks and scientific instruments, together with a small collection of auction catalogues of related interest (a lot).

SCIENTIFIC INSTRUMENTS. A COLLECTION OF 19TH AND EARLY 20TH C BRITISH RULES MAINLY OF BOXWOOD, SEVERAL WITH BRASS MOUNTS, SOME FOLDING, MANY SIGNED

Barometers, scientific instruments and mechanical music - twelve volumes: Banfield, Edwin - three works BAROMETERS: Stick or Cistern Tube, BAROMETERS: Wheel or Banjo and BAROMETERS: Aneroid and Barographs, each published by Baros Books, Trowbridge 1985 and with dj; Collins, Philip R. CARE AND RESTORATION OF BAROMETERS Baros Books, Trowbridge 1993, softbound (two copies); Belville, John Henry Manual of the Mercurial and Aneroid Barometers (1858) facsimile reprint, Turner and Devereux, London 1975, softbound; Goodison, Nicholas ENGLISH BAROMETERS 1680-1860 Cassell and Company, London, 1969, dj; Pearsall, Ronald Collecting and Restoring Scientific Instruments David and Charles, Newton Abbot, London 1974, dj; Michel, Henri SCIENTIFIC INSTRUMENTS in art and history Barrie and Rockliff, London 1967, dj; Clark, John E.T. MUSICAL BOXES A History and an Appreciation George Allen and Unwin Ltd, London 1961, dj; Ord-Hume - two works clockwork music and Collecting MUSICAL BOXES and How To Repair Them each published by George Allen and Unwin Ltd, London 1973 and 1967 respectively, both with dj with a copy of Goodison, Nicholas Ormolu: The work of Matthew Boulton Phaidon Press Limited, London 1974, dj and two other sundry publications (15)

A Victorian figured mahogany bowfronted flat-to-the-wall mercury stick barometer Watkins and Hill, London, mid 19th century With canted pediment and lappet carved frieze above bow-glazed canted silvered brass vernier scale calibrated in barometric inches together with the usual observations and signed Watkins & Hill, 5 Charing Cross, LONDON to upper margin flanking mercury tube, the flame figured bowfronted trunk with vernier adjustment square to throat above glazed mercury tube Fahrenheit and Centigrade scale thermometer and ogee moulded swollen base with level adjustment screw to the cavetto moulded underside, 97cm (38ins) high. The partnership between Francis Watkins and Joseph Hill is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as makers of a diverse range of scientific instruments trading from 5 Charing Cross, London 1819-56.

A George III brass small hook and spike wall clock John Lee, Cookham, circa 1760 The posted single-handed weight driven movement with anchor escapement and alarm housed within the frame sounding on a bell mounted above the top plate, the 6 inch brass break-arch dial with alarm setting disc and pierced steel hand to the leafy scroll engraved matted centre within applied silvered Roman numeral chapter ring with lozenge half hour markers, the angles with mask and scroll cast spandrels beneath silvered boss signed John Lee, COOKHAM flanked by conforming mounts, the rear with iron hanging hoop and spurs fitted to the backplate, 21.5cm (8.5ins) high. John Lee is recorded in Baillie, G.H. Watchmakers & Clockmakers of the World as working in Cookham from 1759 to circa 1800. A black japanned tavern clock by John Lee was offered in these rooms sale of FINE CLOCKS, BAROMETERS & SCIENTIFIC INSTRUMENTS 7th September 2010 lot 99.

*A collection of forty three books, subjects to include Grenwich, early scientific instruments, antique medical instruments, spheres, pottery, old English sporting prints, antique needlework tools, Chinese popular prints, 19th century lustre ware, a book of illustrations to S Maw, Son &Thompson's, to include illustrations of artificial arms, medical instruments, sterilising equipment, published by S Maw & Son, London 1891 etc also a collection of books on microscopes and scientific instruments comprising Carpenter (William B) - 'The Microscope and its Revelations', published by J & H A Churchill, 11 New Burlington Street, London 1891, bound in blue cloth with gilt lettering, Hogg (Jabez) - 'The Microscope its History, Construction, and Application', published by George Routledge & Sons, London 1871, bound in green calf with gilt lettering and decoration, further books on microscopes by H C King, Hogg, Clay, Turner etc, also books on scientific instruments, globes etc

19th century French break front ormolu mounted three piece Clock Garniture, the cobalt blue porcelain dial having Roman numerals and decorated with scientific instruments, enamel jewels and gilding, the movement striking on a bell, flanked by two similar vases, Clock Height 24 cms, Width 31 cms, (A/F), (3)

Assorted books relating to scientific instruments, scales and balances at the Post Office, to include Guido Zavattoni 'Scales and Instruments for Weighing Coins (17th century to 20th century) from a Private Collection', hardback, published Museo Della Bilancia 2003, Howard Robinson - 'Britain's Post Office', John R. Millburn 'Retailer of the Sciences' (Benjamin Martin Scientific Instrument catalogues 1756-1782), L. Sanders 'A Short History of Weighing', 'Shire Album Weights and Measures', Arthur Groom 'How we weigh and measure', Edward Nicholson 'Men and Measures, a history of weights and measures, ancient and modern (1912)', Anita McConnell 'R. B. Bate of the Poultry...', Brian Jewell 'Veteran Scales and Balances', Gerard L'E Turner '19th century scientific instruments'

Assorted books relating to scientific instruments and scales etc, to include Gloria Clifton 'Directory of British Scientific Instrument Makers 1550-1851', Bruno Kisch 'Scales and Weights, a Historical Outline', Bill and Jan Burning 'Scales, a collectors guide', Museo Della Bilancia, Equal Arm Balances', J T Graham 'Scales and Balances', K. H. Haeberle '10,000 years of weights' and R. Vieweg 'Cultural History of Weights'

Conybeare (William Daniel & Phillips, William ). Outlines of the Geology of England and Wales with an Introductory Compendium of the General Principles of that Science., part 1 (all published), 1st. ed. 1822, folding engraved geological map of England & Wales with contemp. hand colouring, calligraphic title page, folding engraved cross sectioned geological chart with contemp. hand colouring bound at rear with uncoloured folding eng. plt. of scientific instruments, later pencil annotations to front paste down and f.e.p., contemp. morocco gilt, a little rubbed at extrems., 8vo, together with Reynolds (James, pub.), Reynolds’s Geological Atlas of Great Britain, Comprising a Series of Maps Geologically Coloured., c.1880, addn. half title, col. litho. frontis. of ‘Comparative View of the Mountains and Hills of England and Wales’, index and hand coloured geological reference plt., thirty-three double page litho. maps with contemp. hand colouring (including one folding), complete as list, gutta percha perished, contents loose and text block detached, a.e.g., contemp. cloth gilt, spine torn and partially detached, faded, frayed and worn, small 8vo, with Ramsay (Andrew C.),Geological Map of England & Wales, pub. Edward Stanford, 1881, large folding map with contemp. hand colouring, sectionalised and laid on linen, slight staining to margins, later ink manuscript ownership signature to end paper, 960 x 880mm, contained in contemp. blue gilt cloth slip case, a little rubbed at extrems. (3).

A GROUP OF VARIOUS SCIENTIFIC INSTRUMENTS, needles etc, together with a small group of unusual microscope attachments etc

Bingley (Rev. W.). Memoirs of British Quadrupeds, Illustrative Principally of their Habits of Life, Instincts, Sagacity and uses to Mankind, 2 vols. in one (inc. Synopsis), 1st ed., 1809, half-title, seventy-one etched plts., occ. spotting & offsetting throughout, contemp. calf lacking title label, vertical split and wear to spine, 8vo, together with Animal Biography; or, Authentic Anecdotes of the Lives, Manners, and Economy of the Animal Creation..., 3 vols., 3rd ed., 1805, folding eng. frontis. to vol. 1, spotting and browning, contemp. half calf, slight wear to extrems., 8vo, plus Good (John Mason, and others). Pantologia. A New Cyclopaedia, Comprehending a Complete Series of Essays, Treatises and Systems..., the Whole Presenting a Distinct Survey of Human Genius, Learning and Industry, 12 vols., 1813, numerous eng. plts. of flowers, fish, spiders, insects, scientific instruments etc., including some hand coloured & folding, a few leaves slightly loose, occ. spotting, contemp. calf, gilt dec. spines, vol. 9 with spine detached, vol. 10 lacks lower half of spine and vol. 11 lacks spine, few boards detached, some joints cracked and extrems. worn, 8vo. Sold with all faults, not subject to return. (16).

A Collection of Scientific Instruments, hydrometers, micro­scopes, electrical instruments, drawing instruments, meters and weights (a lot)

* Three brass revenification balances W. and T. Avery and Co. Ltd, Birmingham, circa 1900. Each beam signed W & T Avery & Co., Birmingham and inscribed with capacity and Kent County Council to other side, with central knife-edge pivot within armature fitted with with level scale and similar pivots for each of the chain pans; the 1lb Capacity stamped with serial number 2530 to the 26cm beam raised on column upright with lever pivoted lifting armature, in original fitted box 50cm (19.75 ins) wide; the 7lb Capacity stamped with serial number 2529 to the 43cm beam raised on similar column upright with conforming armature and in original fitted box 74cm (29ins) wide; the 56lb Capacity stamped with serial number 2528 to the 74cm beam, without post and stand but in original fitted box 80cm (31.5ins) wide, all with dated verification stamps for 1902 onwards, (3). The partnership between William and Thomas Avery is recorded in Gloria, Clifton Directory of British Scientific Instrument Makers 1550-1851 as working in Birmingham 1817-94 before becoming W. and T. Avery and Co. Ltd in 1895. The firm acquired the famous Soho foundry in Smethwick the same year, and under the management of William Hipkins, became one of the leading leading manufacturers of weighing instruments in the country. The business is still trading today albeit as Avery Berkel, a subsidiary of GEC.

* Two brass revenification balances W. and T. Avery Ltd, Birmingham circa 1900. Each with beam signed W & T AVERY LIMITED and inscribed with capacity and KENT COUNTY COUNCIL to other side, with central knife-edge pivot within armature fitted with level scale and similar pivots for each of the fixed pans; the 7lb Capacity stamped with serial number 1203 to the 43cm beam raised on column upright with lever pivoted lifting armature, in original fitted box 74cm (29ins) wide; the 56lb Capacity stamped with serial number 2458 to the 74cm beam, without post and stand but in original fitted box 86cm (34ins) wide, both with dated verification stamps for 1898 onwards, (2). The partnership between William and Thomas Avery is recorded in Gloria, Clifton Directory of British Scientific Instrument Makers 1550-1851 as working in Birmingham 1817-94 before becoming W. and T. Avery and Co. Ltd in 1895. The firm acquired the famous Soho foundry in Smethwick the same year and, under the management of William Hipkins, became one of the leading manufacturers of weighing instruments in the country. The business is still trading today albeit as Avery Berkel, a subsidiary of GEC.

* A brass twenty-litre capacity measure W. and T. Avery, Birmingham, late 19th century Of cylindrical form cast with twin loop handles and inscribed 20 LITRES between moulded rim and foot engraved W & T Avery Makers Birmingham, 32cm (12.5ins) high, 32cm (12.5ins) diameter excluding handle, with wooden travelling case 66cm (26ins) wide. The partnership between William and Thomas Avery is recorded in Gloria, Clifton Directory of British Scientific Instrument Makers 1550-1851 as working in Birmingham 1817-94 before becoming W. and T. Avery and Co. Ltd in 1895. The firm acquired the famous Soho foundry in Smethwick the same year and under the management of William Hipkins became one of the leading manufacturers of weighing instruments in the country. The business is still trading today albeit as Avery Berkel, a subsidiary of GEC.

A Victorian burr walnut mercury stick barometer. Negretti and Zambra, London, circa 1880. The arched bevel-glazed canted ivory vernier scale calibrated in barometric inches and signed NEGRETTI & ZAMBRA, LONDON to upper margin above trunk with vernier adjustment square to throat over applied bevel-glazed mercury Fahrenheit and Centigrade scale thermometer, the circular base with domed cistern cover, 92cm (36ins) high. The firm of Negretti and Zambra are recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as being established in 1850 when a partnership between Enrico Negretti and Joseph Zambra was formed. The firm became one of the most prolific makers of scientific instruments and continued trading well into the 20th century.

An English silver cased verge fusee pocket watch Henry Hindley, York circa 1760 the case later The gilt full-plate movement with square baluster pillars, silvered regulation dial, finely engraved and pierced foliate engraved backcock with diamond endstone and signed H. Hindley, York, 842 to the frosted gilt backplate, the dust cover with conforming signature, the circular white enamel Roman numeral dial with gilt spade hands now in a plain case with post and suspension loop at 12 oÕclock, case marked for London 1827 makerÕs mark HJ, (case with wear, outer case lacking), diameter 4.4cm. Henry Hindley was born in Great Harwood, near Blackburn, Lancashire 1699. Little is known about his early life, however by the mid 1720Õs he was making clocks in Wigan where he repaired the church clock in 1720. Hindley moved with his young family (including his son, Joseph born 1728) to the city of York where, after making clocks for the Mansion House and Guildhall, he gained his Freedom of the city in 1732. HindleyÕs talents were such that he equipped his workshop with tools of his own design including an important dividing and wheel cutting engine, a screw cutting lathe and a fusee engine. As well as for domestic clocks Hindley received commissions for many turret clocks including York Minster and supplied a range of scientific instruments including two important equatorial telescopes for the Duke of Norfolk and William Constable. By the 1760Õs HindleyÕs health had deteriorated to the extent that an increasing proportion of the business was handled by his son, Joseph. Henry died in 1771 with his son and successor Joseph unfortunately dying just three years later in 1774.

Scientific Instruments- a miniature brass travelling microscope, cased

Scientific instruments - a Cambridge potentiometer; a galvanometer; a wheatstone bridge. (3)

Scientific instruments - a Cambridge decade bridge; an Everett Edgecumbe Kilovolt meter; another; a Galvanometer; another. (5)

A collection of scientific instruments, gauges etc

*SET OF SIX NINETEENTH CENTURY HAND COLOURED ENGRAVINGS OF SCIENTIFIC INSTRUMENTS, sextants, armorial sun dials etc., 12" x 8" (30.5cm x 20.3cm) and ANOTHER SIMILAR of a hot air balloon (7)

Four scientific instruments including a set of precision balance scales, a Hall Bros theodolite, a microscope and a beam scale

ANTIQUES AND COLLECTING, SUBJECT. A SHELF OF BOOKS INCLUDING J RUSH, A BEILBY ODYSSEY, G A GORRAN BRITISH PORCELAIN AND OTHERS, SCIENTIFIC INSTRUMENTS, NETSUKE, MAP COLLECTING ETC

A mixed lot of collectables including a pair of carved oak acorn panels, vintage scientific instruments including a calculator, a density gauge, a daguerreotype, a coronation coach miniature, boxed, etc.