Interior of the passenger liner 'Aquitania' (1914) showing the starting platform at the forward end of the Engine Room, a view looking across to the port side. The main controls of the propelling machinery were operated from this position. Hand wheels connected to the master steam valves are visible on the right. On the left are interlocking levers connected to the manoeuvring steam valves. The large instruments indicating the speed of the propeller shafts were manufactured by Chadburn's (Ship) Telegraph Co Ltd of Bootle, Liverpool.