A 2¾ x 2¼ film negative. On board the Type 12 frigate Yarmouth (1959) alongside the South-West Wall in Portsmouth Dockyard. Inside the diesel generator switchboard room on the port side of 2 deck between 11½ and 14 stations. The photographer is looking to port and slightly aft from the door showing the control panels. In the left foreground are the on/off switch and the circuit breaker. A loudspeaker is on the hull and coils of fire hoses are on top of a canvas covered unit on the deck. A vertical format image.