A 19th Century Belgianbrass theodolite, signed Brand Freres Opticiens du Roi, Bruxelles, on the vertical limb supporting the upper telescope, with rack and pinion focusing and dust cap, the 'graphometer' half-circle with two fixed sights, the rotating limb with twin verniers and graduated bubble level, the inset compass with edge bar needle on jewelled pivot and screw-clamp, the lower telescope with rack and pinion adjustment and dusst cap, the body limb on ball-socket and staff mounting, on wood stand - 13in.(33cm)high