Details
TROUGHTON & SIMMS, London
An oxidised and lacquered-brass theodolite, the telescope with draw-tube and rack-and-pinion focusing, dust-slide and cross-wire adjustment, over vertical half-circle with silvered-scale divided 90-0-70 with vernier, the opposite side divided 30-0-30, trunnion-mounted on twin A-frames over horizontal circle with compass box with edge-bar needle, clamp and silvered-dial, bubble-level and cross bubble, silvered scale divided 10-360 with twin verniers marked A & B, on three-screw tripod mount -- 10in.(25.5cm.)high, in fitted mahogany case with maker's paper label and adjustment label,; and a tripod (2)
An oxidised and lacquered-brass theodolite, the telescope with draw-tube and rack-and-pinion focusing, dust-slide and cross-wire adjustment, over vertical half-circle with silvered-scale divided 90-0-70 with vernier, the opposite side divided 30-0-30, trunnion-mounted on twin A-frames over horizontal circle with compass box with edge-bar needle, clamp and silvered-dial, bubble-level and cross bubble, silvered scale divided 10-360 with twin verniers marked A & B, on three-screw tripod mount -- 10in.(25.5cm.)high, in fitted mahogany case with maker's paper label and adjustment label,; and a tripod (2)