On board the County class guided missile destroyer London (1961) alongside the fitting out berth at the Neptune Works of Swan, Hunter & Wigham Richardson Ltd at Wallsend-on-Tyne. The ship is berthed starboard side to the quay. The photographer is in the asdic instrument room between 38 and 45 stations on 4 deck looking aft on the port side showing units SC No. 1, SC No. 2 and four other units against the ship's side. An emergency connection box, a junction box and a telephone are against the aft bulkhead. A vertical format negative.