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A Kelvin & Hughes style nautical sextant, 13cm wide, cased.

A Heath and Co of New Eltham, London blackened metal sextant, with certificate of examination for the Hazzanith Instrument Works London, dated 1962.

A Collection of Antique Scientific Instrument Parts, including a good six-inch magic lantern projection lens, a sextant telescope, telescope parts, stereoviewer lenses, 'Pyramid' kaleidoscope etc

A reproduction sextant

A cased sextant by A.G. Thorton Ltd, Manchester Condition Report: Available upon request

CASED ANTIQUE SEXTANT

A brass circular pocket sextant by A. Hobbs, London, diameter 8cm, together with a Stanley 1911 pattern sextant (2).

A Kelvin Hughes sextant, the Husun, named H Hughes & Son, London, number 48107, contained in a mahogany and pine box stamped 'Wartime Case', width 27cm.

A pocket sextant, by Francis Barker & Son, in circular lacquered brass case, diameter 8cm, together with an American mahogany cased surveyors compass, by Gurley, New York (2).

A wall mounted sextant by James J. Stiles of Sunderland

A telescope, a sextant, 1st World War prisoner of war carved cup and a piece of shrapnel etc.

B C Cousens & Son; a mahogany cased brass and black lacquered sextant with two additional lenses in the fitted case, the mahogany box with carrying handle and bearing label for 'BC Cousens & Son Nautical Opticians, Commercial Chambers, Falmouth'. CONDITION REPORT Inlaid cartouche missing from case, sextant has some dulling and minor pitting, main lens has corrosion showing through black finish, high traffic areas have wear to coating, appears complete and functional.

An A Hobbs of London ship's pocket sextant.

An early 20th Century mahogany cased "Husun" Henry Hughes & Son sextant of 6" radius and 10" reading

CASED POCKET SEXTANT a brass cased sextant, made by Baker, 244 High Holborn, London, in a fitted leather case. 7cms diameter

BOXED SEXTANT - NORIE & WILSON a brass and metal sextant with silvered dial, in a fitted mahogany case and with accessories. Marked, Norie & Wilson, London.

A brass sextant in wooden box

J B Underhill Surveyors Compass 4 1/2'' diameter on tripod; together with a Langford Sextant (cased) (2)Glass broken in half, needle turns smoothly, graduations and makers name clear, silvering Good, one screw loose inside compass, casing has reasonaly wear/denting from use;

A WW2 BUBBLE SEXTANT FROM A BOMBER

A brass naval sextant of customary form with turned wooden handle, 23 x 17cm

An antique brass nautical sextant by D McGregor & Co, Glasgow, fitted in mahogany case.

Henry Hughes & Son 'Husun' black finished brass sextant marked H (broad arrow) O No.336; mounted on a mahogany and brassed backboard for wall display 33 x 31cmClick here to view further images, condition reports, sale times & delivery costs for this lot.

Henry Hughes & Son 'Husun' black finished brass sextant marked H (broad arrow) O No.287 W29cm; and a 19th century Harris & Son London brass three-draw telescope with leather covered tube L72cm extended (2)Click here to view further images, condition reports, sale times & delivery costs for this lot.

Henry Hughes & Son Ltd. sextant with black crackled finish, brass and silvered graduated arc and various coloured glass filters, serial no.60818, in fitted mahogany carrying box bearing Lilley & Reynolds Ltd. certificate dated 1962 W26cmClick here to view further images, condition reports, sale times & delivery costs for this lot.

Captain Laurence Scott (1917-2005) - mid-20th century sextant by L.J. Harri Amsterdam with blackened brass framework and polished brass scale, serial no.W153, in fitted mahogany box; brass and boxwood rope gauge, three small scale rulers and pair of dividers/compasses; his Hull Nautical School Trigo

A cased sextant marked Stanley London, a cased sextant marked Compass, a vintage book 'The Household Medical Adviser' and a selection of silver plated spoons

Sextant Messing, teilw. schwarz lackiert sowie Holzgriff. Gleichschenkliges Dreieck, verbunden durch gebogte Stege und Meßskala. Oberhalb befestigte Spiegel, Farbgläser und abnehmbares Fernglas. Rechteckige Mahagoni-Schatulle. Herstellerzeichen. sowie 1381. L. 21 cm.A German partly black lacquered brass sextant in a mahogany box. Maker's mark. Berlin. R. Imme. Um 1900.

Astronomie - - Christmann, Jacob. Observationum solarium libri tres. In quibus explicatur verus motus Solis in Zodiaco: & universa doctrina Triangulorum, ad rationes apparentium coelestium accomodatur. Mit 1 gefalteten Tabelle und einigen Tabellen und Diagrammen im Text. Basel, Lazarus Zetzner, 1601. 4 Bl., 227 S. 23 x 17 cm. Neuer Halbpergamentband mit rotem goldgeprägten Rückenschild. Seltene erste Ausgabe von Christmanns Werk über sphärische Geometrie in Bezug auf die Beobachtung der Sonne, über Jahre durchgeführt mit einem selbst entwickelten Sextanten. - DSB IV, 221f. - Houzeau/L. 2883 - Poggendorff I, 443 - Zinner 3884. - Jacob Christmann (1554-1613) war "Professor der Logik in Heidelberg ... Er schrieb Arbeiten über die Bewegung von Sonne und Mond und hat als erster das Fernrohr in Verbindung mit Meßgeräten verwendet" (Zinner, Astronomische Instrumente 280). - "On the death of Valentin Otho, Christmann inherited the entire library of G. J. Rheticus, which had been in Otho's keeping. This collection contained trigonometric tables more extensive than those that Rheticus had published in the Opus Palatinum of 1596 ... as well as the original manuscript of Copernicus' 'De revolutionibus orbium coelestium'. The inclusion of instruments in the bequest stimulated Christmann to begin making astronomical observations. In 1604 he proposed to Kepler that they should exchange the results of their researches. Christman was the first to use the telescope in conjunction with such instruments as the sextant or Jacob's staff." (DSB). - Teils etwas gebräunt. Gutes Exemplar.

A 19th century oak cased sextant in brass and ebony and with ivory scales and tablet signed WELLINGTON. LONDON, the case with paper label for Nugent Wells Chronometer Watch & Clock Manufacturer, length of sextant 29cm (AF).

A BOXED BRASS SEXTANT

A Victorian travelling sextant by Smith and Co London, stamped 1930, in a fitted case with glass information slide.

Brass planter, wooden bowl with nautical brass items: 2 tobacco tins, 2 ash trays, ships wheel nut cracker and 1 sextant

A brass drum sextant, unsigned: with silvered calibrated scale, mirrors and shades in a 3 inch case.

A lacquered brass 8 1/2 radius vernier sextant by C Plath, Hamburg, No 300: the three circle frame signed to arc as per title with silvered scale calibrated to 150°, fitted sighting scope, mirror and magnifier.

A brass sextant, stamped 'Stanley, London', 18cm high and a desk top barometer by 'Tyco's, London', on a black metal base, 16.5cm high (2)Provenance: From the collection of the late Tony Saunders of BedfordCondition report: 1. One 'foot' loose, 20th century.2. Glass broken.

An early 20th century sextant, in fitted mahogany case with brass lenses and sand timers, brass plaque on case presented 'Hugo Owens 1902' 27.5cm wide

A Kelvin Hughes sextant No.70788, with certificate, in fitted wooden case

Brass Ship Sextant Marine Nautical Sextant - Kelvin & Hughes London 1917 in case

A modern decorative brass sextant inscribed "Kelvin & Hughes London 1917"

A Henry Barrow brass sextant

Box of oddments to include wooden and other animals, elephants, rhino, fish, glass ashtrays, national confectionery industry wall thermometer, Stanley London angle sextant (reproduction), etc.(B.P. 21% + VAT)

A 6¼IN. RADIUS KRIEGSMARINE MICROMETER SEXTANT BY C. PLATH, HAMBURG, CIRCA 1940 with ebonised aluminium ladder frame, with brass arc divided to 120° signed as per title with maker’s trademark and numbered 28392, index arm with micrometer and quick-release clamp, Kriegsmarine emblem, mirrors, seven shades (one glass missing) and eyepiece with adjustable objective, Bakelite handle contained within fitted box of issue with maker’s plate, drop-handle and securing hooks -- 12½in. (32cm.) wideCondition report: general wear commensurate with age, including paint chips to elements including shade housing, two secondary shades are slightly bent from location, with one missing its filter glass, two pin feet detached and contained within case, case has certificate acetate inside lid which is broken and empty.

A RARE 2¾IN. RADIUS SURVEYING SEXTANT BY C.A. SCHMALCALDER, STRAND, LONDON, CIRCA 1820 constructed in lacquered brass, signed Schmalcalder across the T-bar and numbered 399, diagonal silvered scale divided to 160°, vernier with fine screw adjustment and magnifier, two mirrors, six shades, threaded mounting tube, with threaded wooden handle behind, contained within fitted keystone pocket case with maker's label inside lid -- 5½in. (14cm.) diamCondition report: Fine overall condition with much original lacquer still evident with no apparently missing parts, box in good condition, no splits or cracks etc.

A 6½IN. RADIUS VERNIER SEXTANT BY CRICHTON, LONDON, CIRCA 1920 with polished brass ladder-frame, arc signed as per title and numbered 3029, inset silvered scale divided to 150° vernier with clamp, fine screw adjustment magnifier, braced index arm, siting tube shade mirrors, wooden handle and pin feet, contained within fitted wooden box, with trade label for IVER C. WEILBACH --11in. (28cm.) diamCondition report: Good overall condition, frame has been polished, case maybe a later replacement

A 7½IN. RADIUS BRASS OVAL PATTERN SEXTANT, CIRCA 1860 unsigned, with oxidised brass frame, polished brass arc with polished scale divided to 150°, vernier with clamp and fine screw adjustment, seven shades, two mirrors, wooden handle, contained in fitted keystone box with retail label for F. Martin, Swansea inside lid and cabinet photograph of a young bosun -- 10in. (25.5cm.) wide

AN 8IN. RADIUS DOUBLE-FRAMED ‘PLATINA’ SEXTANT BY TROUGHTON AND SIMS, LONDON, CIRCA 1820 the oxidised brass T-frame with brass arc signed as per title and inscribed Platina and numbered 2507, with platinum scale engraved to 145°, braced index arm with swivel magnifier and clamp, mirrors, shades and wooden handle -- 10in. (25.5cm.) high overall; together with a 7½in. radius oxidised brass vernier octant by Janet Taylor, London, contained in wooden box (2)Condition report: T&S: spotted verdigris to frame, lacks case and all accessories including sighting tubes; Janet Taylor: frame dirty, case fittings loose, no accessories save telescope fitted on instrument

Brass cased microscope by J.H Steward 406 Strand London, within a fitted wooden case with selected accessories and slides containing stone types, the case 13" high ; together with two small monocular microscopes in wooden cases, a vintage N&B "Research" Illuminating Magnifier and a miniature F.L West compass/sextant in presentation box

An early 20th century brass sextant, marked Stanley. W:21cm x D:11cm x H:22cm

A Victorian patinated brass sextant Potter, London, late 19th century The pierced 'ladder' pattern frame with pivoted arm mounted with mirror opposing hinged magnification lens over aperture for reading the fine silver inset brass Vernier scale signed Potter, Tower Hill & Poultry, London, with two sets of hinged filters, brass telescopic sighting tube and wooden grip to rear of frame, the fitted rectangular mahogany box with two additional sighting tubes and a telescope eyepiece slider, the inside of the lid with applied trade label ...HENRY HUGHES & SON, Optical, Nautical, Mathematical, Instrument Makers, 59 Fenchurch Street, London... the exterior with shaped brass name plate to lid, the box 26.5cm (10.5ins) wide. John Dennett Potter is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as succeeding the role of Admiralty chart agent from the business of Thomas Brettell Bate from circa 1847. He worked in London from 31 Poultry 1851-82 and 11 King Street 1854-82 and was succeeded by his son Septimus C. Potter.Condition Report: Optics appear complete however there are two vacant apertures in the case suggesting that two other accessories were present at some point. There are a few spots of dirt to the lenses within the tube(s). The filters and mirrors are complete and are in good condition. The Vernier adjustment is operational and the scale is clean but divisions etc. are still clear when sighted through the magnifier. The frame retains its original finish in good condition; the lacquered brass elemnts show some slight wear/discolouration. The box has some shrinkage cracking and a slight warp to the lid otherwise is in good original condition with a few minor age related bumps, scuffs etc. There is no key for the box. Condition Report Disclaimer

W. Portman, Bethnal Green, sextant black lacquered frame, quadrant with makers name, ebonised handle all contained in a mahogany travel case, the escutcheon marked E.A.J.F. Cartercase dimension width 29cm (11in), depth 14cm (5.5in), height 27cm (10in)Condition report: No obvious damage, box interior suggesting there were a further two lenses and possible mirrors which are now missing.

A cased resistance bridge tester, by W. Nicolson, Glasgow, Scotland; together with a Griffin Centisecond Timer; a cased River Chemical Co. sextant; a Pye Scientific Instrument; and a cased Soil Testing Outfit. (5)Provenance: From the Science Lab of Ecclesbourne School in Duffield.

A mid 20thC. cased No.1771 sextant by Cooke Hull

MAHOGANY BOXED REPRODUCTION SEXTANT BY ROSS LONDON

A brass miniature sextant, in case, a brass compass, a fabric tape measure and two slide rules, in leather cases

MINIATURE SEXTANT ETC

A D Shackman & Sons of London sextant, no. 3941, with original case and examination document dated 1945

-- Zur geometrisch-mathematischen Berechnung der Himmelsdimensionen-- Blaeu, Joan. Sextans astronomicus trigonicus pro distantiis rimandis. Kolorierter Kupferstich aus Atlas Major. Plattengröße ca. 39 x 26 cm. Mit Passepartout unter Glas in teilvergoldeter Holzprofilleiste gerahmt. 56,5 x 42,5 cm. Amsterdam, Joan Blaeu, ca. 1662-1670. Koeman II, 12:2. - Prächtige Darstellung des "großen Sextanten", eines der wichtigsten Geräte zur Bestimmung der Winkel und damit der Abstände und Entferungen von Himmelskörpern. Der Sextant ist auf einem Holzgestell über einer Kugel montiert und wurde erstmals von dem Astronomen Tycho Brahe (1546-1601) dargestellt und beschrieben. Die Funktion wird bei Kästner im Zusammenhang mit den Instrumenten Brahes beschrieben: "17. Das Werkzeug läßt sich vermittelst einer Kugel, auf welcher es ruht, in jede Ebene bringen. Die Kugel dreht sich innerhalb eiens Kreises, wie bey Weltkugeln der Horizont ist, vom Kreise geht niederwärts Quadranten zur Haltung. So was, wie bey Feldmesserwerkzeugen die Nuß. Bey diesen beyden Winkelmessern sind die beyden Beobachter am Umfange" (Abraham Gotthelf Kästner, Geschichte der Mathematik, 1797, II, 637). Der bemerkenswert gut erhaltene, exakt und nuanciert kolorierte Stich stammt aus dem "Atlas Major, sive cosmographia Blauiana, qua solum, salum, cœlum, genaue Beschreibung" (Amsterdam, 1662). Die Abbildung basiert auf Tycho Brahes illustrierter Beschreibung des Observatoriums Uraniborg auf Ven in Tycho Brahe, der "Astronomiæ instauratæ mechanica" (Wandsbek, 1598). Joan Blaeu's Vater, Willem Janszoon Blaeu (1571-1638), war 1594-96 als Instrumentenbauer und Kartograf in Uraniborg tätig. - Bemerkenswert schönes, sauberes Blatt in prachtvollem Kolorit, verso Text. Nicht ausgerahmt (möglicherweise Randläsuren), Versand nur ohne Rahmen.

Sextant in mahonie kist, gemerkt Hezzanith and ges.Heath & Co. New Eltham London S.E. 9 gekeurd 26/02/53.

A BOX AND LOOSE SUNDRY ITEMS, ETC, to include a Manfrotto MK293A3 tripod fitted with MH292A3 RC1 pan and tilt head, in unused condition, Everest vintage typewriter, resin chess set with chess board mounted on legs and castors, glass chess set, Clifton leather cigar holder, unbranded sextant in wooden box, Past Times telescope in wooden box, boxed napkin rings, flatwares, cased lawn bowls, a framed letter to Sir Christopher Musgrave 4th Baronet, dated 1683, signed Dartmouth, picture frames, etc

Nautical interest four reproduction instruments brass sundial compass,brass Sextant boxed A Brass cylinder sextant and a brass compass.