Look at that butchery to the leading edge cannon casting of the Spitfire two thirds down the page. 🙁

That is the Shuttleworth Mk V AR501. They ‘chain drilled’ flush nearly all the aircraft with cannon apertures to make them look like early Mks I-II for the BoB period.

Who would have known or really cared?

By the end of the film they were slipping in Buchons in RAF livery to fill in for Hurricane background.

Mark