On board the Type 12 general purpose frigate Plymouth (1959) alongside the south side of number 3 basin in Chatham Dockyard at the end of a modernization which commenced in August 1966. The ship is berthed starboard side to the quay. The photographer is in the passageway at 30½ - 35 stations on 2 deck looking forward showing the closed watertight door at 30½ station with an automatic emergency lantern next to it. On the starboard side stairs lead up to 1 deck and a hatch leads down to 3 deck. The door to the main communication office is in the right foreground. Against the port bulkhead are a transformer, fuse panels, a combination safe, four cable stowage brackets, a main broadcast loudspeaker and two emergency connection boxes. The sliding door to the weapons electrical office is in the port bulkhead. A vertical format negative.