Pienmen nephoscope

A brass mounted black glass reflector top which fits over the top of the bowl which can be rotated. It is fitted with two wooden knobs and a vertical arm which is graduated 2-11 and which can be raised or lowered by a worm screw. The black glass reflector carrried a circumferential scale.

Object Details

ID: ACO0655.1
Type: Pienmen nephoscope
Display location: Not on display
Creator: Unknown
Date made: Unknown
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 119 mm x 175 mm x 142 mm
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