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 compartment on 2 deck between 6 and 11½ stations. The photographer is looking to port and slightly aft from the centre line showing the work bench area and a pair of air pumps and pressurized air cylinders. A box of Kimwipes disposable wipers and an oil can are on the cupboard on the left.