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 steam turbine engine room between 90 and 106 stations on 4 deck showing a four way junction on the platform. On the left is a group of four gauges labelled de-aerator and a water column level indicator glass. On the right are two Foxboro power positioners. A vertical format negative.