I've got a bit of Hendon's Beverley in the attic back at my parents. Looks like an inspection panel off a wing. Only about 50 cm by 40 cm, but oval (ish).
We nicked/borrowed/acquired bits when we were Air Cadets on out first big trip... If we'd have been able to raise more money for a bigger minibus we'd have nicked more. Blame the charity of the British public therefore....
As enthusiastic Cadets we were all very gutted to go to Hendon, the Holy Place of all things Aviation, to discover the first exhibit being chopped up and replaced by bloody fibreglass Airfix kits...