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An American Theodolite, c.1890, American, signed to compass face 'KEUFFEL & ESSERCo, NEW YORK', with trade label to door and repair label, theodolite further engraved with patent dates for '1891', standing on four adjustable feet, silvered compass behind 4" diameter glass, 'A' frame supports to reversible telescope with rack and pinion focusing, finished in lacquered silver oxidise, case height 36cm
Transit Theodolite C.1900, English, signed on the silvered compass face 'T. B. WINTER & SON, NEWCASTLE-UPON-TYNE', all brass standing on four adjustable screw feet, two magnifiers to the the horizontal circle and two to the vertical circle, telescope with focusing; with another theodolite telescope finished in black
An early 20th Century Troughton & Simms anodised brass and aluminum Transit Theodolite, divided altitude and alidade scales with micrometers, engraved Troughton and Simms, London, one trunnion engraved No. 7, use of aluminium possibly for use in hot climates and 'lightweight', G, 360mm high; this instrument was used in the Ashanti District of the Gold Coast from 1910 to 1933 by Walter Wheatly Kilby, District Commissioner in the Colonial Service
A 19th century lacquered brass mining theodolite, by J Davis, Derby, inset compass with 7cm silvered dial, screw-threaded adjustment, 27.5cm wide, mahogany case en suite, brass plaque inscribed Presented to John Sterland Gratton by the Officers and Members of the Derby Rifle Volunteers for His Valuable Services in the Formation of their Rifle Range at Derby 21st July 1866
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2335 item(s)/page