Slide rule

Position Line Slide Rule
Leather zip case
Aluminium alloy calculator
Instruction book - duplicated
Designed for solution of the fundamental problem of celestial navigation by the Marcq St. Hilaire method.

Object Details

ID: NAV0185
Type: Slide rule
Display location: Not on display
Creator: Unknown
Date made: circa 1950
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 10 mm x 355 mm x 357 mm
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