Specialist Collectors Sale

Late 19th / early 20th century Morton's Patent pelorus with inner register ring incorporating adjustment for magnetic variation and slightly varie...

Late Victorian Magneto electric shock machine in a fitted case, together with a large vintage box camera CONDITION REPORT Both items complete and ...

Nautical chart rolling rule, signed - W. H. Harling Ltd. London, in a fitted case, together with a 'The John Williamson Company Ltd.' boxwood and ...

Single draw telescope or spyglass with silver plated body, striped cover and two-lens eyepiece, signed - Ramsden London CONDITION REPORT Paper mac...

Three-dial LSD calculator marked - The British Calculator for Compound Addition, in original fitted case, together with another calculator with a ...

Walker's Patent Harpoon Ships Log A1 - with brass body and fins and three white enamel dials, 53cm overall length

Victorian brass and steel chondrometer / grain balance, by Bate London, in original fitted mahogany case with instruction label

Victorian Compensated Altimeter - with silvered dial and adjustable ascent / descent scale, signed - J. Hicks 8, 9 & 10 Hatton Garden, London, in ...

19th century lacquered brass circular protractor in a green felt-lined mahogany case with applied label - Pawson & Brailsford, Sheffield, protract...

Nine bone or ivory microscope slides

Twin Diaphragm Aneroid Barometer - in a brass case, mounted on a 'Mouseman' carved oak backing plate, 22cm across CONDITION REPORT Appears to be i...

Late 19th / early 20th century Negretti & Zambra Practical Drawing Instrument Set - in a brass bound fitted case with lift-out tray, together with...

Fuller's Patent spiral slide rule with twin scales and brass pointers, in a fitted mahogany box

Brass chemical balance in original packaging, together with a box of weights (2)

Watchmaker's depthing tool in fitted case with Walsh Beckenham label CONDITION REPORT We believe this to actually be a clockmaker's tool, not watc...

Leica Wild M3Z stereo microscope with Wild Heerbrugg type S stand, together with two additional eyepieces and a Leica cover

Early 20th century Cram's Unrivalled 12 inch illuminated terrestrial globe on a gilt metal Atlas stand with wooden plinth

Early 20th century brass black-finished sextant with shades and mirrors and additional eyepieces, signed - Kelvin White & Hutton 11 Billiter St. L...

Heath-Marine Bosun compass in original packaging, together with one other compass in a wooden case (2)

Late 19th / early 20th century Practical Drawing Instrument Set, by Stanley, Great Turnstile, Holborn, London, in a fitted mahogany case with lift...

Early 20th century brass theodolite stamped - E.R.W. & S. on a mahogany tripod, together with a fitted wooden carrying case for the instrument (2)

Early 1920s thermograph with clockwork-operated circular temperature chart and tracing pen measuring 0 degrees to 300 degrees, fitted with a lengt...

Cooke Troughton & Simms Ltd. M103901 microscope in a fitted case with spare lens, quantity of new glass slides and some specimens, a Canon photo m...

Victorian brass nine draw stalking telescope with leather cover and bras lens cap, signed - Bate, London, together with leather carrying case COND...

First World War brass military spotting scope with black finish, signed - W. G. Pye & Co. Cambridge no. 9704 1917 no. 4 Mk III - with broad arrow ...

Ships' brass binnacle cup with oil lamp illumination

Late Victorian brass microscope with accessories, in a fitted case with slide / lens drawer

Rare late 1920s / 1930s Felt & Tarrant comptometer, model no. J 302162, with green and white moulded key tops, side mounted handle and copper-fini...