A 19th-Century brass transit theodolite, signed on the silvered dial Queen & Co., Makers Phila. No. 5671., the telescope with rack and pinion focusing, bubble level with silvered scale, 4½ Inch vertical circle with vernier raised on twin supports with bubble level over the horizontal plate fitted with compass, enclosed circle with silvered scale and twin verniers, adjusted by tangent screw with clamp on 4 screw tripod mounting, overall height - 14in. (35.6cm.); and a transit theodolite by Heller & Brightly, with vertical quadrant and horizontal circle (tripod mounting lacking); and a surveying level mounting and limb by W. & L.E. Gurley, (telescope lacking). (3)