An oxidised brass transit, signed on the silvered compass dial W. & L.E. Gurley Troy. N.Y., and further engraved F W Lincoln Jr. & Co., Agents, Boston, Mass., the telescope with rack and pinion focusing, bubble level with engraved graduated scale, the axis raised on twin supports from the horizontal plate with level and cross-bubble, the compass with edge-bar needle, jewelled cap and clamp, the scale divided in 4 quadrants and tangent screw fine adjustment to variation vernier, the enclosed horizontal circle with silvered scale and single vernier, on 4 screw tripod attachment with plummet and lens hood and trade label for F W Lincoln J R & Co., in fitted mahogany case - 13½in. (34.3cm.) wide.