A 19th-Century lacquered brass theodolite, signed YOULE 83 Leadenhall St. LONDON, the telescope with rack and pinion focusing, bubble level and dust cap, located by twin clamps over the vertical half-circle with silvered scale, vernier and magnifier, the axis with tangent scew adjustment on twin Vee-supports from the horizontal plate with level and cross-bubble and compass box with silvered dial and edge-bar needle, the silvered chamfered horizontal circle with twin verniers and single magnifier, tangent screw adjustment and clamp, on 4 screw tripod mounting with plummet and rare stencilled trade label for John Archbutt & Sons 201 Westminster Bridge Road Lambeth, in mahogany case - 11¼ins. (28.6cm.) wide.