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Preisdatenbank abonnierenAN OLD EBONISED AND BRASS CASED POCKET ALTIMETER/BAROMETER, the silvered dial engraved 'Paul Weiss, Denver', 8cm diameter, five further similar instruments, two leather cases, a Goliath pocket watch, cased; a WWI Field Clinometer Mark IV by Taylor, Taylor & Hobson No. 8332; and a Sestrel marine compass No. 3925, cased (11)
Y A fine Regency mahogany bowfronted 'flat to the wall' mercury stick barometer Bate, London, circa 1825 With swan neck pediment and cavetto cornice over silvered Vernier scale calibrated in barometric inches and annotated Very Dry, Set Fair, FAIR, Change, RAIN, M'ch Rain, Stormy beneath signature Bate, London to upper margin, behind bowed glass within moulded surround above ebony line edged trunk of the same bowed profile incorporating vernier setting screw to throat, the base with turned half vase cistern cover flanked by ebony line strung canted angles over cavetto moulded underside incorporating level adjustment screw, 100cm (39.25ins approx.) high excluding brass finial. The current lot is almost certainly by Robert Brettell Bate who is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from Poultry, London 1808-42 and then 33 Royal Exchange 1846-47. Bate was known as a maker of all types of instrument however was celebrated for his nautical instruments including marine barometers and latterly was appointed Instrument-maker to Her Majesty s Honourable Boards if Excise and Customs.Condition Report: Tube is filled with mercury with no apparent air locks. The silvered scale exhibits a very slight even mellow appearance but are free form patchy areas of discolouration or other faults and the rack-and-pinion Vernier adjustment is operational. The case is in good condition with the only noteworthy fault being the loss of a small section of top moulding from the right hand side (approx. 1 ins in length). The surface finish of the case has slightly aged/mellow appearance.Condition Report Disclaimer
A Victorian lacquered brass compound monocular field microscopeUnsigned, circa 1870The tube with moulded collar and rack-and pinion focus adjustment sliding within a sleeve decoratively pierced to form twin supports, enclosing stage with slide apertures to each side and incorporating helical retention spring, on moulded ring base, in original mahogany box with six objective lenses, forceps, tweezers and other accessories including six prepared bone sliders, (lacking eyepiece and mirror), the box 27cm (10.5ins) wide; with a cased glass set of hydrometers, Negretti and Zambra, London, late 19th century, comprising eleven blown glass floats each with mercury filled bulb beneath ovoid air chamber and cylindrical stem enclosing a calibrated ivorine scale inscribed TEMP 60 and signed NEGRETTI & ZAMBRA LONDON to verso, in original velvet and silk lined fitted mahogany box with a Fahrenheit scale mercury-tube thermometer and a test-tube, the box 27.5cm (10.75ins) wide (2). The hydrometers in the current lot are by Negretti & Zambra who are recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as being established in 1850 when a partnership between Enrico Negretti and Joseph Warren Zambra was formed. The firm became one of the most prolific makers of scientific instruments and continued trading well into the 20th century.Condition Report: Microscope - as catalogued the instrument is lacking its eyepiece insert and mirror; the rack focussing adjustment is working but is very stiff otherwise the instrument is in sound original condition but with noticeable wear/degradation to the original lacquered finish. The box has three small compartments vacant for accessories however all objective lenses appear to be present. The box is in sound original condition but with relatively minor age related bumps, scuffs and staining to exterior; there is no case key present.Hydrometers - are in good original condition with some light mercury staining to the glass bulbs only; one bulb has some migration of the mercury into the upper chamber however it probably can be coaxed back into the lower chamber! the case has light age related marks to the exterior and minor degradation to the silk lining to the lid otherwise is in very good original condition. Condition Report Disclaimer
A Victorian 4 inch refracting telescopeThe eyepiece signed for John Browning, LondonThe 48 inch leather-covered tube fitted with a 'star-finder' and rack-and-pinion focus adjustment and second telescopic draw to eyepiece end opposing objective with lacquered brass cap, the whole mounted via two pivot bars secured by knurled screws between a pair of shaped brackets applied to a substantial rotating brass post fitted onto a mahogany tripod with hinged tapered wooded open-frame supports, the tube 138cm (54.5ins) long closed; with a mahogany box containing two additional eyepieces, another within an eight-inch extension tube and two filters along with a selection of unrelated accessories. John Browning is recorded in Banfield, Edwin BAROMETER MAKERS & RETAILERS 1660-1900 as working from various addresses in London from 1862 until after 1900; he was 'Optical & Physical Instrument Maker to Her Majesty's Government, The Royal Observatory and Kew Observatory'.Condition Report: Lenses appear free from visible cracks, chips or noticeable degradation; there is a little grime to the interior most likely from condensation. The rack and pinion focussing is not operational. The star finder has noticeable foxing to the interior. Instrument otherwise appears to be in sound original unrestored condition; the leather covering to the tube has wear/lifting and some cracking and the lacquer finish to the brass has noticeable wear and discolouration throughout. The tripod is complete and in original unrestored condition with significant faults limited to denting to the brass column and degradation/wear to the lacquer finish. The accessories are illustrated in our online listing, there is no signature anywhere else on the instrument (other than the one noted in the catalogue description) and the diameter of the objective is 4 inches. Condition Report Disclaimer
A William IV/early Victorian mahogany bowfronted mercury cistern tube marine stick barometerJames Bassnett, Liverpool, circa 1840With concave moulded surmount and cavetto cornice above bow-glazed canted ivory Vernier register plates annotated with the usual observations and signed JAMES BASSNETT, LIVERPOOL to lower left hand corner, the trunk with Vernier adjustment screw and brass gimbal pivots above glazed ivory Fahrenheit scale mercury tube thermometer, the base with moulded cylindrical lacquered brass cistern cover incorporating brass level adjustment screw to underside, 94cm (37ins) high. James Bassnett is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as an optician, clock and chronometer maker working from 4 Barnes Court, Shaws Brow, Liverpool 1829-34 and then from several addresses in Robert Street until 1857 when the firm became known Bassnett and Son.Condition Report: Tube is filled with mercury with no apparent air locks. The ivory scales have some localised patchy discolouration to the lower angles (around the brass securing screws), otherwise appear free from faults; the rack-and-pinion Vernier adjustment is operational. The thermometer tube is undamaged and the scale has a slight crack to the left hand margin (through the 100 numeral). Both the curved 'glasses' for the thermometer and barometer scales have been replaced with polycarbonate with the latter having some adhesive fogging to the upper margin. The case has been cosmetically restored with the moulded pediment block being re-attached slightly off-centre and the timber re-polished. The brass cistern cover has been apart and put back together with the cylinder being slightly off-centre in relation to the upper collar, the lower collar has a small crack in the brass to the leading edge and the underside has been slightly pushed-up. The gimbals are modern replacements. Condition Report Disclaimer
A rare oak cased micro-barograph with thermometerNegretti and Zambra, London, early 20th centuryThe mechanism with nine-segment aneroid chamber connected via a lacquered brass armature to an inked pointer for recording the change in barometric pressure on a double-height clockwork-driven rotating paper scale lined drum, the brass baseplate engraved NEGRETTI & ZAMBRA, LONDON and applied with an arched silvered Fahrenheit and centigrade scale mercury tube thermometer, the case with five-panel hinged cover on cavetto moulded skirt base incorporating a drawer containing spare charts over simple squab feet, 49cm (19.25ins) wide. The firm of Negretti & 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 Warren Zambra was formed. The firm became one of the most prolific makers of scientific instruments and continued trading well into the 20th century.Condition Report: The aneroid chambers appear to be in sound condition with no obvious variation in profile depths and the instrument responds to change in pressure. The clockwork movement is in working condition. The recording pointer pivots and frame appear complete and brass retains original lacquer finish with overall light to moderate patchy discolouration in places. The thermometer is in good original condition. The case is in sound original unrestored condition with faults limited to minor bumps, scuffs, shrinkage and wear commensurate with age; there is a small quantity of spare charts with the instrument. Condition Report Disclaimer
λ A MAHOGANY MARINE STICK BAROMETER BY G. STEBBING, PORTSMOUTH, EARLY 19TH CENTURY brass mounted, the top with a suspension ring, above a hinged door revealing ivory dials signed 'G. Stebbing Portsmouth', with an adjustable vernier scale, the inside of the door a thermometer, with a gimbal with later dolphin mounts, the base with a turned reservoir 96.5cm high
A FRENCH MAHOGANY AND ORMOLU CARTEL CLOCK AND MATCHING BAROMETER IN LOUIS XV STYLE the wall clock with a brass eight day movement striking on a bell, the backplate stamped 'EM 14258', with a circular enamelled dial with Roman and Arabic numerals, signed 'Passement a Paris', the case with Rococo mounts and with a painted thermometer dial, the companion barometer also signed 'Passement a Paris', with weather observations in French (2) 103.5cm high
A Victorian silver pocket barometerCirca 1841-1861 The 45mm dial signed Negretti and lambra, London, the reverse engraved with the arms of the '2nd Duke of Sutherland, in red morocco case.Footnotes:These are the paternal arms of George Granville SUTHERLAND-LEVESON-GOWER (1786-1861) 2nd Duke of Sutherland (from 1833). It bears the honour of a Knight of the Garter, his appointment being 1841, dating this item between 1841-1861.For further information on this lot please visit Bonhams.com
A vintage japanned tin trunk, possibly military related, with painted lettering RF Warren Victoria, containing a pair of hanging pendant lights with frosted textured pressed glass shades, three others, a glazed stoneware barrel stamped Etherium Drinking Water, a further stoneware one gallon jar with oval stamp Robbil Pottery Glasgow, a brass fender, an Edwardian/1920s oak aneroid barometer/thermometer (lights AF)
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