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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...
16 Jan

Three Stylus Driven Calculators

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“The Golden Gem”- serial number 30005, marked “Pat. Mar. 1-04-Mar 2-06 Mar 19-07” and “Automatic Adding Machine Co. New York, USA -no stylus In good working order The Standard Desk Calculimeter,marked on side “PAT DEC 17’01-in reasoble condition, some of the dials a bit sticky-quite an uncommon calculator-American-no stylus The ‘Brical’ English money adding calculator in good condition in original case with stylus   Read More...
12 Jan

six draw nickel silver telescope – Ross.

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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...
22 Dec

Three draw pocket telescope with pancratic eyepiece – Braham.

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This three draw brass telescope has a leather covered barrel and measures 5.5 inches long pulling out to 15″. It is signed ‘Braham, Bristol’. John Braham worked at various addresses in Bristol from 1828 – 1838. This 3 draw has a ‘hidden’ pancratic tube / eye-piece. If the user partially unscrews the eye-piece a concealed pancratic eye-piece can be accessed (fully retractable). This tube is engraved, ‘Pancratic Eye Tube’ and has various magnification engravings from 15 – 35 x. Very clean and Read More...
22 Dec

Seven draw telescope – Myers, London.

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Signed on the flat of the eye-piece, ‘Myers, London’, the telescope measures 22″ and 4.75″ closed. It has a lens cap and a dust slider to the eye-piece. Small dent to the barrel. Read More...
21 Dec

three draw telescope with engraved ‘scale of minutes’.

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A nickel silver three draw telescope with a dark, mahogany barrel, unsigned, but the 2nd and 3rd draw tubes engraved with a scales of small increments and ‘Scale of minutes’. It was the Scottish scientist Sir David Brewster who invented the telescope for measuring Angles and Minutes and had a joint patent with instrument maker William Harris to produce / sell such a telescopes in May 1811. Brewster’s original design of this type of telescope was engraved, ‘Scale of minutes divided Read More...
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