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A 19th century boxwood travelling diptych sundial and compass, string gnomon, folding for the pocket, 8cm wide
A 19th century gilt brass travelling aneroid barometer, 7cm silvered register inscribed Adie,
A 19th century gilt brass travelling aneroid barometer, 7cm silvered register inscribed Adie, Broadway, Westminster, 9cm over loop, c.1870
A 20th century marine ship's barometer, by F. Darton & Co Ltd, Watford, 21cm silvered cylindrical register, rectangular wooden mount, 115cm long o...
A George III shagreen tapered rounded rectangular draughtsman's etui, hinged cover enclosing an arrangement of drawing implements, 17cm long, c.17...
A gilt brass aneroid pocket barometer, 4.5cm silvered dial inscrtibed Compensated, and Made in England, 7cm over loop
A military marching compass,
A military marching compass, 6cm diam
A set of six mercury hydrometers, Twaddell's no.1 to 6, by James Woolley, Sons & Co, 25.5cm long, cased ...[more]
A William IV brass monocular compound microscope, by Andrew Pritchard, London, convex mirror,
A William IV brass monocular compound microscope, by Andrew Pritchard, London, convex mirror, adjustable candle sconce, tripod base, 51.5cm high, ...
An Admiralty pattern brass parallel rolling rule, by Camper & Nicholsons Marine Equipment Ltd,
An Admiralty pattern brass parallel rolling rule, by Camper & Nicholsons Marine Equipment Ltd, 46cm long, cased ...[more]
An American brass military clinometer, Quadrant, Gunners, M1 No 85103 Minneapolis Honeywell Reg Co (1942?), 20cm wide, leather case
An astrological clock, The Calendar Clock, by Devon Clocks for The Heritage Collection, 19.
An astrological clock, The Calendar Clock, by Devon Clocks for The Heritage Collection, 19.5cm silvered chapter ring, turned mahogany base, ltd Ed...
An early 18th century French brass folding square or sector, by Haye, Paris, marked out and inscribed Les Parties Egalles, opening to 33cm long, c...
An early 20th century brass and mahogany circular vial spirit level, push-fitting cover, 15.
An early 20th century brass and mahogany circular vial spirit level, push-fitting cover, 15.5cm diam
An early 20th century oxidised brass theodolite, by Troughton & Simms, London, 10" main tube,
An early 20th century oxidised brass theodolite, by Troughton & Simms, London, 10" main tube, 180 degree elevation, compass to base with silvered ...
An early 20th century surveyor's brass rolling parallel rule, 46cm wide, mahogany case; another,
An early 20th century surveyor's brass rolling parallel rule, 46cm wide, mahogany case; another, similar (2)
An interesting collection of scientific, drawing and optical instruments, including an American Optical Co [USA] Macula Retinoscope; micrometer; c...
Cartography - Map Reading - a 19th century nickel-plated patent chartometer, by Morris, Birmingham,
Cartography - Map Reading - a 19th century nickel-plated patent chartometer, by Morris, Birmingham, 5cm register, tooled and gilt leather case, ad...
Early Telecommunications - an early 20th century clockwork telegraph or telephone instrument,
Early Telecommunications - an early 20th century clockwork telegraph or telephone instrument, the clockwork mechanism set off with a pull-chain an...
Science and Medicine - a 19th century brass pump, by Savigny & Co, St James's Street, 19.5cm long; 19th century lacquered brass microscope chassis...
Vintage Wireless - a British Thomson-Houston (BTH) Type C2 loud speaker horn, approx. 57.5cm high
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