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 main magazine between 83½ and 139 stations on the centreline of 2 deck looking into the port forward corner from about 87 station showing the missile movement machinery and the armoured door at 83½ station. A vertical format negative.