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EXCEPTIONAL 18TH CENTURY BONE OPTICAL COMPENDIUM

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

A FINE EARLY 19TH CENTURY TWO DAY MARINE CHRONOMETER BY LITHERLAND AND DAVIS, LIVERPOOL

A small early 19th century 2-day chronometer in the original mahogany and brass bound case. The 4″ dial is signed and numbered along with the ivory plaque on the case and the inside of the bowl case. Defra Ivory registration number 3X83MSYL   Litherland and Davis were fine makers of Marine chronometers and this small example has been cleaned to the highest standard. Circa 1830 Read More...

~UNUSUAL EIGHT DRAW POCKET TELESCOPE-HARRIS~

An unusually stout, eight draw pocket refracting telescope by William Harris of 47 Holborn Street c.1810. OG measuring 1 3/4 inches in diameter, 5 1/2 inches closed and 29 inches open. Wonderful script signature on the first draw, “Wm. Harris’s, Improv’d Pocket Telescope, 47 Holborn, LONDON”, the optics are clear and sharp although itt has had one hard knock in it’s 200 year lifetime resulting in 3 edge chips of the OG (outside of the focal plane) and a slight Read More...

A single arm protractor by Heath, Plymouth.

A six inch single arm brass protractor engraved to the arm, ‘Heath, Plymouth’, with vernier scale and sprung steel pointer. In mahogany case, 21 x 17 cms . Read More...

A large 8 inch single arm protractor – C.T. Cooper.

An unusually large 8″ single arm protractor engraved on the arm, ‘C.T Cooper, 86 Gt Dover St, London’, with vernier scale and locking thumb wheel in a felt lined mahogany case. Read More...

Three draw telescope – J. Newton, Halifax.

This telescope measures 83 cms when fully open and 29 cms when closed and has a main lens of 4 cms. The fluted eye-piece has a dust slider and the telescope is signed, ‘Js M Newton, Optician, Halifax’. It is free of damage and gives excellent views. Read More...

Mid Victorian Carved Walnut Stick Barometer by Negretti & Zambra, London

For sale, a fine mid Victorian carved walnut stick barometer by Negretti & Zambra. In typical robust style of the period, it is topped with a classical broken arch pediment with a square column and floral rosette filling the centre space. The scale below is framed behind a domed walnut frontage with pillar design each side, floriat carving above and thick bevelled glass. The two-part inverted scale is divided on each side for 27 to 31 inches of barometric pressure with Read More...

Fine vernier protractor – Adie.

A fine brass, single arm vernier protractor by Adie, London, divided to half a degree and the vernier reading to one arc minute. In an unusual lined, moroccon covered wooden case. circular Read More...

21 Inches Cruchley Celestial Library floor globe

Interesting 21 Inches Cruchley Celestial Library floor globe. Cruchley’s, new celestial globe on which is accurately laid down the whole of the stars and nebule contained in the astronomical catalogue of the Reverend Mr Wollaston F.R.S.Also from the authorities Flamsted, De La Caille, Hevelius, Mayer, Bradley, Herschel, Maskelyne, &c.Ands the limits of each constellation determined by a boundary line.London. published by G.F Cruchley, map-seller & globe maker, 81 Fleet street.   Read More...

19th Century Microscope Nicol Prism Ocular With Goniometer

The goniometer eye-piece should fit an RMS tube diameter; that is, most continental European and American microscopes made after ca. 1850. Read More...

Miniature nickel silver double arm protractor in case – Piggott, London.

Quite rare; a 4.5 inch nickel silver double arm protractor by Piggott, London, with geared adjustment via a thumb-wheel, the swining arms with pointers and steel springs (one missing), divided from 0 – 360 down to a half degree, the vernier reading to 15 arc seconds. The reverse engraved with previous owners name, ‘H. Stone’. Contained in original mahogany case 13.5 x 13.5 cms with two fastening hooks. Probably either George or Peter Piggott with a combined working range date Read More...

nickel silver single arm protractor in case – Stanley.

A very nice 6 inch nickel silver single arm protractor, signed on the vernier arm, ‘Stanley, London’ and also engraved on the cross bar, ‘Re-divided by C. Baker’. Contained in a felt lined mahogany case with magnifyer, the lid with two fastening hooks. Read More...