Gyroscopic Sextant

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The sextant has a casing of grey-lacquered aluminium and artificial materials, housing optical equipment, a clockwork averaging mechanism, electrical equipment, and a rubber eyecup. The instrument has two index shades in green and red.

The instrument has a scale measuring from 0° to 80° by 10 arcminutes, and a vernier measuring to 1 arcminute.

The sextant is contained in a square fitted wooden carrying box, containing a grey shade, a battery charger, two batteries, two light bulbs, and instructions for use in German. Several unidentified parts are missing. The box is marked on the outside, ‘4753’.

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Object Details

ID:	NAV1181
Collection:	Astronomical and navigational instruments
Type:	Gyroscopic Sextant
Display location:	Not on display
Creator:	Plath, C.
Date made:	circa 1943
Credit:	National Maritime Museum, Greenwich, London
Measurements:	Overall: 135 mm x 340 mm x 280 mm
Parts:	Gyroscopic Sextant Kreiselsextant shade (Gyroscopic sextant shade) (NAV1181.1) Kreiselsextant handle (Gyroscopic sextant handle) (NAV1181.2) Kreiselsextant battery charger (Gyroscopic sextant battery charger) (NAV1181.3) Kreiselsextant battery charger part? (Gyroscopic sextant battery charger part?) (NAV1181.4) Kreiselsextant lightbulb (Gyroscopic sextant lightbulb) (NAV1181.5) Kreiselsextant lightbulb (Gyroscopic sextant lightbulb) (NAV1181.6) Kreiselsextant lightbulb (Gyroscopic sextant lightbulb) (NAV1181.7) Kreiselsextant miscellaneous part (Gyroscopic sextant miscellaneous part) (NAV1181.8) Kreiselsextant battery (Gyroscopic sextant battery) (NAV1181.9) Kreiselsextant battery (Gyroscopic sextant battery) (NAV1181.10) Kreiselsextant box (Gyroscopic sextant box) (NAV1181.11)