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10 Feb

Pantograph by Thomas Dunn of Edinburgh. Circa 1845.

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An oak cased brass pantograph by Thomas Dunn of 50 North Hanover Street, Edinburgh. Circa 1845. Numbered: 402 Interior of the case has trade label: THOMAS DUNN, OPTICIAN, MATHEMATICAL AND PHILOSOPHICAL INSTRUMENT MAKER, 50 NORTH HANOVER STREET.EDINBURGH. The interior also has a handwritten note inside the lid with the “Rule for setting Dunn’s improved pantograph“, dated “27 February 1845“. see the photograph of note for the equations needed to be used for the settings. Dimensions of case: Height: 14.5 cm | 5.75 inWidth: 90 Read More...
09 Feb

~VERY GOOD VICTORIAN MICROSCOPE LAMP-BAKER~

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Standing 11 inches tall on a 5 inch diameter brass ring, this Victorian microscope lamp shows some upper lamp innovations beyond the Swift-type lamp but very little use. Signed “Baker, 244 High Holborn, London”, it retains the typical round glass reservoir and stopper (often broken and later replaced by metal ones), paraffin oil lamp burner and wick (original) assembly, japanned/anodized metal tapering chimney (often cracked in the Swift models) with original blue glass filter and with a fully adjustable (both Read More...
04 Feb

Miniature Architect Set with balusters compass in red leather case C. 1800

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,Miniature Architect Set with balusters compass in red leather case C. 1800 one with a pencil holder at the pointed end, a dry point drawing pen, and a small ruling pen. Very good condition Read More...
04 Feb

~LOUPE/THREAD COUNTER-LARGE FORMAT-BRASS c.1890

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This fine brass loupe /thread counter/magnifier could be used for a variety of purposes and has a variable distance option on the barrel for very fine and close work. Optically clean and clear with tightening ring  for the graduated barrel length (0-3 cm. working distance internally with an external scale 0-6 in half centimeter gradations). Ocular lens is 1.5 cm, object lens is 3 cm. with a maximum extendable length of 8 cm. Ideal for many hobbyists or naturalists Read More...
03 Feb

~A GOOD PLANE TABLE SURVEYING COMPASS by BADDELEY-1785~

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A good plane table surveying compass by John Baddeley of unusual features and undocumented signature c.1785. Measuring 6 3/8 inches (16 cm.) square and constructed of mahogany wood with brass accents/mounts with fully engine divided 360 degree raised inner ring in one degree increments, this magnetic compass has seen signs of use but not abuse. The silvering of the dial has faded/oxidised/rubbed? on the outer edges of the face (divided into four cardinal points only). The central rose? pivot point Read More...
26 Jan

~RARE AND FINE 18th c. CASED HYDROMETER~

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A rare survivor of the Georgian era. A pocket hydrometer used to measure the strength of alcohol on a scale of 1-10. Weighted bulbous end (lead ball/shot?) ensured that the higher the alcohol content, the lower the bulb would sink in the solution (10 being pure alcohol or high proof based on density). The stem is graduated on both sides. Made of three parts and silver soldered together, it shows little wear. The turned walnut, two part  case is Read More...
25 Jan

Anesthesia: Trilene Inhaler in Original Box

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Trilene* inhaler for obstetric anesthesia made by Cyprane Ltd in Oxenhope,UK. “Hand-held by patient, this inhaler was used for obstetric analgesia. Comes in original, labeled, blue cardboard box that includes cylinder, face mask and no.5. key to charge. UK Pat. no 628709. Maker: Cyprane Ltd, Keighley England.” The inhaler, including mask, is in very good condition ( what you’re seeing in first image is the reflection of the camera and me holding it) ; the box shows wear. A Read More...
23 Jan

FINE 18TH CENTURY EBONY QUADRANT DATED 1781 BY COLE LONDON

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SHIPPING BY FEDEX, UPS, ETC. FULLY TRACKED.  Contact Email:   [email protected] IVORY EXEMPTION NUMBER. AUVV32P9 Read More...
19 Jan

BRISSE BLOND TORTOISE SHELL FAN WITH SINGLE DRAW SPYGLASS, IN GOOD WORKING COND. C1840

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NO SPLITS, NOTHING BROKEN, NO REPAIRS. AN EXCEPTIONALLY FINE EXAMPLE , WITH PAINTED FLORETS,  6 IN.LONG CLOSED   Read More...
12 Jan

SOLD – six draw nickel silver telescope – Ross.

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SOLD – A good pocket telescope by ‘Ross, London’ constructed in nickel silver with a baleen covered barrel. The draws operate nice and smoothly. The telescope measures 4.75″ long when closed and 20″ fully open. Excellent condition. Damage free. Contained in original leather case. Read More...
12 Jan

Rare Short Form of Hannyngton’s Extended Slide Rule

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Short form of Hannyngton’s Slide Rule marked ‘Designed by Major General Hannyngton’ ‘Shop Rule’ and for the maker ‘Aston & Mander 1917 Ltd Makers London’-in good clean condition in original Case  Read More...
12 Jan

An Example of very rare Fearnley Universal Calculator

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An example of a very rare Fearnley Patent Universal calculator, marked ‘By Royal Letters Patent’-in original mahogany case. Modus operandi is not clear although the Science Museum example describes its use by the Observatory of Cambridge University. There are no moving parts or cursor-The calculator is rather grubby as shown and the surface is covered throughout with uneven varnish.   Read More...
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