An oxidised and lacquered brass surveying theodolite, signed on the silvered dial Elliott Brot.rs 30 Strand London 602, with bubble level over telescope, with rack-and-pinion focusing, ray shade and dust slide, the 5½inch diameter vertical circle, with inset silvered scale divided quadrantly, twin vernier scale with twin magnifiers, tangent screw and clamp, with twin A frame supports, bubble and cross bubble, the horizontal plate with silvered compass box divided 10°-360°, with edge-bar needle and cap, with clamp, the horizontal plate with twin vernier and magnifier, divided 10°-360°, with tangent screw and clamp, on four screw tripod mount, with accessories in fitted mahogany case - 12¾in.wide; with a brass mounted tripod
Details
An oxidised and lacquered brass surveying theodolite, signed on the silvered dial Elliott Brot.rs 30 Strand London 602, with bubble level over telescope, with rack-and-pinion focusing, ray shade and dust slide, the 5½inch diameter vertical circle, with inset silvered scale divided quadrantly, twin vernier scale with twin magnifiers, tangent screw and clamp, with twin A frame supports, bubble and cross bubble, the horizontal plate with silvered compass box divided 10°-360°, with edge-bar needle and cap, with clamp, the horizontal plate with twin vernier and magnifier, divided 10°-360°, with tangent screw and clamp, on four screw tripod mount, with accessories in fitted mahogany case - 12¾in.wide; with a brass mounted tripod
Lot Essay
Elliot Brothers were in production at 30 Strand 1859-60. In 1857 they took over Watkins and Hill. This instrument is a good example of the firms work at the end of their period.