Test Bench540 viewsPlate one shows four engineers at work on a test bench inside a hangar while an officer supervises.
Test Bench539 viewsPlate two shows a man operating a machine that is either pulling an engine out or lowering it into an aircraft. Two men are holding the engine on either side.
Test Bench537 viewsPlates three and four are identical and show a man working on a test bench outside a hangar.
Test Bench514 viewsPlates three and four are identical and show a man working on a test bench outside a hangar.