UK and Ireland Archives - Page 76 of 94

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CROOKES’ SPECTROSCOPE IN MINIATURE, English, c. 1875, signed “John Browning, London.” This fine little spectroscope has a central trapezoidal box containing the glass prism, and two 4″ (10 cm) long tubes, one with extending tube containing the two-element eyepiece, the other with extending tube containing the simple adjustable slit. Each tube can be adjusted slightly for tilt with respect to the prism. Spectra are clearly visible. The instrument is in very fine condition, with its beautiful clear lacquered finish Read More...

15 Jan

CHEMISTRY STANDARD VOLUME MEASURES

By TESSERACT

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CHEMISTRY STANDARD VOLUME MEASURES, English, c. 1900, comprising a set of five graduated glass pipettes, numbered “2244,” engraved variously with volumes in minims, grains, drachms and ounces, each one etched with a sequence of certifications including date and ruling monarch (e.g., 1908 ER, 1921 GR, 1931 GvR, 1941 GviR, 1951 GviR, 1961 EiiR). The fine fitted mahogany case is 12-1/4″ x 3-7/8″ x 1/2″ (31 x 10 x 1.3 cm) and bears a brass plaque engraved “County of Renfrew, Read More...

14 Jan

Sick Syphon Silver

By Van Leest Antiques

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A silver Sick Syphon, C. 1800/1820. The underside of the straw is engraved with the owner’s name: W. Gutter to H Roger. This object was used in hospitals as a straw so the patients were able to drink something. Length: 13 cm. Read More...

13 Jan

DEMONSTRATION SOUNDING TUBES

By TESSERACT

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DEMONSTRATION SOUNDING TUBES, probably English, late 19th century. These four lacquered brass tubes are mounted on a mahogany base 13-1/4″ x 4″ (34 x 10 cm), the tallest standing 11-1/8″ above the base. Each has a wood plunger piston which, when withdrawn rapidly, produces a sound whose frequency depends on the length of the standing column. Complete and all original, in fine condition. Read More...

13 Jan

HAIR HYGROMETER

By TESSERACT

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HAIR HYGROMETER, English, c. second quarter 19th century, signed “Watkins & Hill, London.” The open framework is constructed of clear lacquered brass, 8-3/4″ (22 cm) tall overall, with suspension ring and mounts for the mechanism. It is fitted with a circular scale of relative humidity divided every unit from 0 to 100, and ends marked D(ry) and M(oist). An index pointer is driven by central double pulley, the pulley drawn counter-clockwise by string attached to a tight bundle of Read More...

13 Jan

Extremely rare late 18th century refracting telescope By Francis Watkins London

By Eppursimuove

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Extremely rare late 18th century refracting Telescope by Francis Watkins London Signed: “WATKINS CHARING CROSS LONDON” Here we are dealing with a very rare achromatic refractor telescope produced by Watkins, as his reflection telescopes much more known than refractors. Furthermore, to make this telescope even more rare and historically interesting is the fact that it mount a triplet achromatic objective lens. Anyone who knows the history of the telescope with achromatic lenses, knows that it was John Dollond who patented it, after learning that Read More...

07 Jan

Very Large Victorian Desk Thermometer by W Watson & Sons London

By Jason Clarke Antiques

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For sale, a very large Victorian desk thermometer by W Watson & Sons of 313 High Holborn, London. Oustanding design and very unusual for its huge proportions, this superb desk thermometer is comprised of a turned and graduated ebonised wooden base and upstand. To the front of the stand is a fantastic opaline glass and painted scale for both Fahrenheit and Centigrade with the maker’s name to the top, W. Watson & Sons, 313 High Holborn, London and patent registration Read More...

05 Jan

Open scale Micro-barograph by Short & Mason

By Hatchwell Antiques

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An open scale Micro-barograph by Short & Mason of London. Number: 551/41 Seven day clockwork drive by Horstmann Gear Co Ltd, of Bath. Serial number: 7027/59 With Meteorological Office “MO” logo. Meteorological Office calibration certificate dated 27.6.96 Short and Mason Ltd:Established in 1875 by Thomas Short and James Mason as Short & Mason, trading at 40 Hatton Garden, London, They made and sold barographs, aneroid barometers, compasses, aviation instruments such as altimeters, indicators and gauges. Read More...

22 Dec

A very original Culpeper microscope by William Harris, London

By Hansord Antiques

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A Regency period brass Culpeper design microscope in lovely condition retaining the original lacquer throughout, signed on the stage and the mahogany case with a trade label. The drawer below containing an almost complete collection of accessories with all the lenses present. In good working order. Read More...

21 Dec

Star diagonal by Broadhurst Clarkson

By Hatchwell Antiques

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A star diagonal by Broadhurst Clarkson & Co. of London. With R.A.S. standard 1 1/4 inch thread. Rear plate with 3 adjustment screws. Marked: STAR with the Broadhurst Clarkson logo (63 Farringdon Rd E C). Telescope accessory for observing at high altitude and near zenith. Read More...

17 Dec

J H Dallmeyer SER XIV projection lens

By Hatchwell Antiques

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J H Dallmeyer London SER XIV projection lens. No: 94508 Marked: F=5″ = 13CM Barrel length: 8 cm. Barrel diameter: 5 cm. Diameter of front lens: 40 mm Read More...

16 Dec

Prototype design for an aircraft propeller boss

By Hatchwell Antiques

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A 1930’s laminate mahogany prototype design for an aircraft propeller hub. Height: 31.5 cm – 12 inches. Diameter: 23 cm – 9 inches. Read More...