This must be one of the more unusual things on the Rogers Motors website. It's a Rolls-Royce BL2439 spanner wrench, used for tightening fitting on some sort of pipe. Was it made for a Merlin engine from a Spitfire or Hurricane? Or the heater tap of a Phantom III? We don't know but we do know it was owned by the Ministry of Defence of the United Kingdom once, as the King's Broad Arrow is clearly showing on the handle, indicating that it's government property.