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 - 33 stations on 2 deck looking forward and to starboard showing the closed watertight door at 30½ station with an automatic emergency lantern next to it. Stairs lead up to 1 deck and a transformer is behind the stairs. A steel ramp is stowed alongside the stairs and an emergency connection box is against the starboard bulkhead ahead of the door to the C/C switchboard room. In the right foreground is a man in the hatchway down to 3 deck.