A 19th-Century oxidised and lacquered brass surveyor's level, signed on the limb Kolesch & Co New York No. 1721, the telescope with rack and pinion focusing, bubble level, located on twin clamps over the limb with vernier pointer, on a 4 screw tripod mounting, in fitted case with makers trade plate - 12 7/8in.s (32.2cm.) wide; and a dip needle in brass case - 4ins. (10.2cm.) wide. (2)

細節

A 19th-Century oxidised and lacquered brass surveyor's level, signed on the limb Kolesch & Co New York No. 1721, the telescope with rack and pinion focusing, bubble level, located on twin clamps over the limb with vernier pointer, on a 4 screw tripod mounting, in fitted case with makers trade plate - 12 7/8in.s (32.2cm.) wide; and a dip needle in brass case - 4ins. (10.2cm.) wide. (2)