拍品專文
A similar instrument was sold in Scientific Instruments on 21 June 1990,lot 179.
細節
CABASSON, Paris
A lacquered-brass centesimal theodolite, the telescope with rack-and-pinion focusing, cross-wire adjustment and lens cap, the front in trunnion-mount, the rear with angle adjustment with silvered-scale divided 70-0-70 and vernier, the limb with bubble-level, over horizontal scale divided 0-390 with twin verniers, telescope bellow, on three-screw tripod-mount -- 13½in.(34cm.)high, late 19th century
A lacquered-brass centesimal theodolite, the telescope with rack-and-pinion focusing, cross-wire adjustment and lens cap, the front in trunnion-mount, the rear with angle adjustment with silvered-scale divided 70-0-70 and vernier, the limb with bubble-level, over horizontal scale divided 0-390 with twin verniers, telescope bellow, on three-screw tripod-mount -- 13½in.(34cm.)high, late 19th century