A 19th-Century lacquered brass circumferentor, signed on the silvered dial W & S JONES Holborn LONDON, the edge-bar needle with compensating weight for dip, agate cap and stop, the bar limb with level and cross-bubble, the alidade with 2 folding sights, the circle with 2 detachable sights on staff mounting, with trade label for W Gardner No. 3 Royal Bank Place Glasgow, in pine case - 11ins. (28cm.) wide.