Type 2

The sextant has a casing of black-lacquered alloy and artificial materials, which houses optical equipment, electrical equipment, and a rubber eyecup. The instrument has two green index shades and one red detached shade. A white plastic plate fitted to the side of the instrument is marked in Japanese characters, ‘Instrumental error chart’. Accompanying the instrument is an adjusting pin.

The sextant is contained in a fitted wooden box, however, the lid is missing. The instrument is incomplete.

Object Details

ID: ACO1267
Collection: Astronomical and navigational instruments
Type: Bubble Sextant
Display location: Not on display
Creator: Shimadzu Corporation
Date made: After 1926; ca.1940
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 115 mm x 240 mm x 175 mm
Parts: Type 2
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