A rare submarine depth gauge, believed to be from a T-Class submarine of the early 1940s. These diesel-electric vessels were developed just prior to the outbreak of World War 2 and went on to play an important part in the conflict.

The instrument measures 35cm (approximately 14") across and has two scales reading down to 350' depth of water below keel level and 150lbs/sq inch of pressure. It was manufactured by Payne and Griffiths, a Birmingham-based maker of precision gauges, founded in 1937 and an important supplier to the British Admiralty from World War 2 onwards.

Condition: The instrument survives in very good condition with minor age-related marks, some paint spots etc. The brass components have been polished but have some accumulated dirt and oxidation. The needle has been partially repainted at some stage. Internally it looks to be complete but is sold as seen and untested.