Details
A brass surveying level,
by Troughton & Simms (Military Pattern), the telescope with rack and pinion focusing, level and cross-bubble, ray shade and dust slide, mounted on a limb incorporating a compass, on three-screw tripod attachment, overall length -- 12½in. (31.8cm.)
by Troughton & Simms (Military Pattern), the telescope with rack and pinion focusing, level and cross-bubble, ray shade and dust slide, mounted on a limb incorporating a compass, on three-screw tripod attachment, overall length -- 12½in. (31.8cm.)