Wonderful shot there Adam.
*Just slipping in the final answer to the photograph a few pages back.
At the Battle of Britain 70th anniversary dinner on September 15th 2010 at the London Guildhall. Various things were auctioned off for RAFBF etc. Among the things I ended up with was a piston from an early Merlin engine, mounted on a stand with explanatory plaque from the Rolls Royce factory! My wife prefers that I keep it in the attic, but occasionally I bring it down to quietly admire.