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HUGHES IMPROVED DOUBLE SEXTANT

SHIPPING BY UPS, FEDEX, ETC. FULLY TRACKED. Contact Email:  [email protected] Read More...

Hurter and Driffield Actinograph

An example of Hurter and Driffield’s Actinograph-Patent No.5545 1888, in good condition in original case, noting paper on large drum looks like a replacement. Read More...

Geologist Scale by Griffin and Tatlock

Geologist’s field scale for rock measurements by Griffin and Tatlock, complete and in good condition in original case Read More...

FINE ENGLISH EXPEDITION REFRACTING TELESCOPE BY ROBERT BANKS

SHIPPING UPS, FEDEX, ETC. FULLY TRACKED  Contact Email:  [email protected] Read More...

~FINE 1 3/4 INCH LEATHER BOUND THREE DRAW TELESCOPE-DOLLOND~

A fine 1 3/4 inch diameter, three draw telescope by Dollond c. 1840. Wonderful script signature “Dollond, London” on the first draw, early machining of all three draws, green flint/crown doublet object lens, clear optics, 10-20X magnification, object and ocular lens covers, tan leather body covering with intact stitching. Has seen little use (minor oxidation but nice and tight) and no dents to the draws or barrel. Leather military/naval style carrying sleeve has lost it’s strap. 10 inches closed, Read More...

C1895 John Weiss & Son Ltd Letter Opener

 A late 19th-century “JOHN WEISS & SON LTD”  advertising letter opener. Probably offered as a good- will gift to their regular customers. Weiss moved to 287 Oxford St, London, in 1889.They subsequently relocated to 11 Wigmore St. They are currently based in Milton Keynes.  Read More...

McDermotts Screw Propeller Computer

A cardboard Calculator with directions for operating in original leather case Read More...

Clarks computer for Conversion of the decimal parts of an Acre

A celluloid ready reckoner for conversion of the decimal parts of an acre into rods and perches and into square yards or vice versa Read More...

Recording copper rain gauge by Casella of London

An 8″ diameter recording copper rain gauge by C F Casella & Co of London. Circa 1950. With an internal 24 hour “Gluck” barometer recorder. Height: 63 cm. Diameter: 28 cm.   Literature: Casella London Catalogue No. 684 METEOROLOGICAL AND SCIENTIFIC INSTRUMENTS. Pages: 120 – 122.   Read More...

Book: The Microscopic Photographs of Benjamin Dancer.

By Brian Bracegirdle and James B. McCormick. An excellent very clean copy in its hard-case folder.   U.K. post £7. Read More...

A small library telescope

Late 19th century small library telescope, unsigned, extending to 29″ (74 cms) and 23″ (58 cms) closed. The height is 15″ (38 cms) with a main lens of 42 mm. The tripod folds away for easy storage and the telescope gives a fine sharp image when viewing, with a magnification of 25 x. Some small marks to the body tube but generally in  good condition. Read More...

~RARE AND FINE GOLD/COIN ASSAY SCALES WITH FULL WEIGHTS c.1772~

A spectacular and rare set of 18th C. gold assay scales with full 1772 weights (Guinea, 1/2 Guinea, 1/4 Guinea) and pennyweights stamped from 4 down to 1 (24 grains), all housed in a wooden insert and in their original rectangular tin box with conversion chart in lid. Ornate equal arm scales with brass pans (stamped one and two), original stringing, chiselled beam, ornate double pierced, tear-drop gallows and supension ring loop. These scales were intended to be hung over Read More...