A 2¼ square roll film negative. A deck view of the Type 12 frigate Yarmouth (1959) alongside the south-east corner of the fitting out basin in John Brown & Co Ltd's shipyard at Clydebank. The photographer is looking forward and down from the port side of the foremast upper platform. In the left foreground is a dangerous explosives locker next to an exhaust fan with a canvas covered 20 inch signalling projector and a 2 inch rocket flare launcher outboard. The mesh aerial for the Type 277Q aerial is in the foreground abaft the Mark 6M director which is overlooking the gunnery direction officer's platform above the bridge. The port side air lookouts positions, the 10 inch signalling projector and the azimuth repeater have canvas covers.