On board the Type 12 frigate HMS Falmouth (1959) alongside the Swan, Hunter & Wigham Richardson Ltd fitting out berth at Wallsend on the River Tyne between 1 and 25 July 1961. The photographer is in the engine room between 49 and 57 stations on 4 deck looking to port from the port side of the centreline on the lower platform showing a water gauge graduated from 40 inches to 52 inches and engraved 'above centreline of extraction pump suction'. On the left is a Foundrometers Ltd pressure gauge reading in pounds per square inch and in inches of mercury. The precise location of this photograph is unknown. A vertical format negative.