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A BRASS THEODOLITE BY THOMAS RUBERGALL, LONDON, CIRCA 1840, signed and inscribed on the 2½in. silvered dial Thomas Rubergall / Optn. to H.R.H. the Duke of Clarence / 24 Coventry St. London, silvered scale with vernier to edge of platform, needle clamp and spirit level, the sighting tube with cross wires and spirit tube over, mounted on arc with silvered scale and rack-and-pinion adjustment -- 6½ x 10½in. (16.5 x 26.5cm.), Provenance: Sotheby’s, July 23rd 1973
BRASS THEODOLITE AND MATCHING TRIPOD marked Kelvin & James White Ltd., Glasgow & London 'No.10 1130 W', the sight and spirit levels complete on tripod-mounting base, with a fitted wooden box, 29cm long; together with its wooden legged tripod with brass screw in top, marked 'K. & J. W. Ltd No.35', 149cm long
A SINGLE OWNER COLLECTION OF SCIENTIFIC APPERATUS TO INCLUDE FIVE LATE 19TH/EARLY 20TH CENTURY MICROSCOPES, A RARE 19TH C.CLOCKWORK TELEGRAPH RECEIVER, A BRASS TRANSIT THEODOLITE, A SEXTANT GIMBLE, BRITANNIC CALCULATOR, A CLINOMETER, A PLANIMETER,19TH C. QUADRANT, DENTAL AND SURGICAL TOOLS ETC
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2335 item(s)/page