A rare Spitfire Mark 1 that was shot down over Dunkirk 75 years ago is going under the hammer at Christie’s ‘Exceptional Sale’ this July.
![DX%20050911%20Third%20flight%20JR%20048[1]](http://alert5.com/wp-content/uploads/2015/04/DX-050911-Third-flight-JR-0481-500x333.jpg)
The warbird is only one of two of its type to be restored back to flying condition and is expected to sell for around £2.5 million.