Supermarine spitfire radiator relic offcut

These iconic off cuts come from a section of radiator relic removed from a crash site in Russia. 
The radiator cowling was recovered from  Russia and were removed during a restoration project, A picture of the radiator cowling when it arrives is attached. You can see the part numbers. 
Whilst confirmed to be spitfire, we have been unable to identify the aircraft registration.
These are very limited in quantity!
Approx 8x3cm, chosen at random price is for one.
Comes with certificate of authenticity to confirm it is spitfire.