Scale 1:144. Plan shows the incident board H.Q. 1 & 2 [Damage Control Headquarters] on No. 6 [lower] and No. 7 [platform] decks, as fitted for the aircraft carrier Hermes (1953). The board would be lit up on the wall with different lights indicating which areas are active and which are inactive due to damage. A Devonport Dockyard Manager of Constructive Department stamp, dated 12 May 1966 is printed on the drawing and is noted as Sheet 4 of 5.