Does anyone recognise this reduction gearbox? The plate refers to Vickers Armstrong Onions, the box is very substantially built with 2:1 and 1:1 ratios controlled by an air shifter. Further clues as to its age: the air shifter piping was plastic. It also has a speedo drive. I am planning to use it on a vintage road car project but concerned that it might be too noisy.
As an alternative I would be interested in any gearbox that could be used to provide a 1:2 step up and could cope with 250 BHP and 600 ft lbs torque, maybe an epicyclic unit? Thanks