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 Seaslug missile test equipment room between 75 and 84 stations on the starboard side of 2 deck looking aft and to port showing a missile isolator switch and a wooden drawers and cupboard unit with an electronic circuit panel set under it and a high pressure dry air unit above it against the port bulkhead. An electronic guided missile fuze test set and a guidance cabinet unit No. 1061/MTE manufactured by GEC are against the aft bulkhead.