A 2¼ square film negative. The Type 12 frigate Yarmouth (1959) in No. 2 dry dock in Rosyth Dockyard. A very close view of the pitometer log in the raised position in the hull by 30 station. The photographer is looking up into the unit from under the hull to port of the keel. A photographic print from this negative is stamped 'Planning Department Design Division 8 May 1981 H M Dockyard, Rosyth'.