Shadow pin tripod

Shadow pin tripod

Brass tripod with shadow pin at centre which can be placed on verge glass of compass for taking bearings?

Length of arms 3.75" (9.5 cm)
Length of shadow pin 3.75" (9.5 cm)

O.A. height 4.0" (10.2 cm)

Object Details

ID: ACO1302
Type: Shadow pin tripod
Display location: Not on display
Creator: Unknown
Date made: circa 1940
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 100 mm x 190 mm x 130 mm