Antique 19th century mahogany cased surveyor’s theodolite. The brass and gilt brass level has a rotating circular base with thumbscrew adjustment and a compass with silvered dial and stop lever engraved with maker’s name, W & S Jones, 30 Holborn, London. The telescope is supported on its axis by two A frames and is fully adjustable by thumb screws, the radius is engraved with a scale and the telescope also has a bubble level attached. The folding mahogany tripod stand is brass mounted and the brass centering plate is also adjustable.
W & S Jones were at 30 Holborn from 1800 - 1860 and were amongst the most successful scientific instrument makers in London.
English, circa 1800 - 1830.
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