Testing a rubber gasket for a caisson in Portsmouth Dockyard, Hampshire

A rubber gasket fitted in a pressure test unit in a workshop in Portsmouth Dockyard. The unit is closed up to test the effectiveness of the gasket, which is intended for use in a caisson.

Object details

ID: N25359
Type: Negative
Materials: Glass plate negative
Display location: Not on display
Date made: 24 February 1943
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 101 mm x 127 mm