Details
A 19th-Century lacquered-brass surveying level,
signed Ertel & Sohn in München, with rack and pinion focusing, lens cap, the telescope mounted in a trough by twin clamps and with graduated bubble-level above, the vertical pillar incorporating fine-screw adjustment and clamp with tripod mounting socket and screw with additional bubble-level, in fitted beechwood case -- 13in. (33cm.) wide
See Illustration
signed Ertel & Sohn in München, with rack and pinion focusing, lens cap, the telescope mounted in a trough by twin clamps and with graduated bubble-level above, the vertical pillar incorporating fine-screw adjustment and clamp with tripod mounting socket and screw with additional bubble-level, in fitted beechwood case -- 13in. (33cm.) wide
See Illustration