On board the Type 81 general purpose frigate Eskimo (1961) in No. 3 basin in Chatham Dockyard during her 1971-1974 modernisation. The photographer is in the A/S and 4.5 inch metadyne room between 73 and 78 stations on the port side of 3 deck looking aft from 74 station showing an amplifier assembly in the left foreground, the door to the room, a junction box with a fuse panel above, an amplifier with a fuse panel above and another fuse panel. The semi-circular object with the number 48 on it is a change over switch. On the deck on the right is the Mk. 19 metadyne and an axial flow fan and trunking are against the aft bulkhead. A vertical format negative.