BRASS THEODOLITE BY WILLIAM HARRIS, LONDON
19TH CENTURY
£450
Auction: 30 September 2015 at 11:00 BST
Description
engraved to the platform, W. HARRIS & CO./ HOLBORN/ LONDON, the telescope with graduated bubble-level, mounted with axis over the vertical half-circle with engraved scale, fine screw adjustment with clamp, raised on two inverted V-frame supports from the horizontal plate with level and cross-bubble, the compass with edge-bar needle on jewelled pivot, the chamfered silver scale with twin verniers, fine-screw adjustment and clamp, on four-screw tripod mounting in mahogany carrying case with paper trade label
Dimensions
27cm high