A roll film negative showing the boilers and engine on board the Danish tug St Canute (1931) on display at the Exeter Maritime Museum. On top of the two black circular engine casings are a number of safety valves. Numerous red and yellow pipes are connected to the engines at one end and another set of valves on the wall in the background. Painted in black letters on the metal overhang above the engine are the words 'OFF NO. 303262. REG. TONNAGE NIL TONS'.