Details
A 19th-Century brass theodolite,
signed Troughton & Simms, London, the telescope with rack and pinion focusing, the half-vertical circle with silvered scale and vernier, raised on twin V-shaped supports over the horizontal plate, with compass bubble-level and cross-bubble, the chamfered silvered scale with vernier, magnifier, tangent screw fine adjustment and clamp, on four-screw tripod attachment, in fitted mahogany case -- 10in. (25.4cm.) wide
See illustration
signed Troughton & Simms, London, the telescope with rack and pinion focusing, the half-vertical circle with silvered scale and vernier, raised on twin V-shaped supports over the horizontal plate, with compass bubble-level and cross-bubble, the chamfered silvered scale with vernier, magnifier, tangent screw fine adjustment and clamp, on four-screw tripod attachment, in fitted mahogany case -- 10in. (25.4cm.) wide
See illustration