Two cylinders from a 9 cylinder Bristol Mercury - a valve spring is just visible on the LH cylinder. The tyres are from a Bedford truck or BSA motor bike.
Bristol Mercury radial engine - owned by the Aircraft Restoration Company, Duxford
Follow these links to see more about the items of the Thistlegorm’s cargo shown above and an article I wrote that was published in the UK Diver magazine in February 2007:
