Scale 1:144. An ozatrace copy of a plan showing the incident board for all decks of the Salisbury class frigate Salisbury (1953). This panel would be on the wall and would light up if an incident (such as fire, flooding or a injury) was reported in a specific location on board. This drawing was drawn by D. Rowe [Daughtsman at Devonport Dockyard flourishing 1970].