On board the Type 12 frigate HMS Londonderry (1958) alongside the west wall in the basin at Rosyth Dockyard, near the end of her modernization which commenced 7 July 1967 and completed 28 January 1970. The photographer is in the avcat pump space between 57 and 59 stations on the centreline of 4 deck looking to port showing the Fram liquid separator filter and control panel against the forward bulkhead. A telephone, access ladder, emergency cable stowage, emergency changeover switch box and the helicopter fuel pump starter panel are against the port bulkhead.