legal question: ownership of a component from a WWII RAF aircraft

[gilles collaveri]

Good morning to our in house legal advisers,

here is a simple question :

who is the owner a component from a WWII RAF aircraft, such as an engine, a wing, etc.. that I would find somewhere in France (in a lake, in a forest, a field whatever..) ?

Do the RAF as a right to claim it ?

I have in mind that this is the case for USAF hardware, but is it the same for RAF stuff ?

is there any juridiction on similar cases for RAF machines ?

Thanks in advance for your nice answers to this boring question.

Cheers

GC