Admiralty-pattern frame sextant

Made:
1942-1947 in London
maker:
Henry Hughes and Son Limited
Grey-lacquered brass sextant

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Grey-lacquered brass sextant
Science Museum Group
© The Board of Trustees of the Science Museum

Grey-lacquered brass sextant, Admiralty-pattern frame type with Bakelite handle containing battery for scale illumination and push-button control by Henry Hughes and Son Ltd, London, England, 1942-1947. Consists of inlaid silver 130° scale (-5° to 130°) with 1° divisions and plastic drum micrometer reading to 1’, four filter shades (all green), two horizon shades (both green). Fitted with threaded telescope bracket for telescope (148 mm) inverted image, wit four cross-wires.

Details

Category:
Navigation
Object Number:
1967-440
Materials:
copper (metal), steel (metal), brass (copper, zinc alloy), paint, bakelite and mirror-glass (silvered)
Measurements:
overall: 270 mm x 262 mm x 101 mm, 1.96kg
type:
sextant
credit:
The Admiralty Compass Observatory