As described on wikipedia
The Mk 19 was the last and greatest photographic reconnaissance variant of the Spitfire. It combined features of the Mk XI with the Griffon engine of the Mk XIV. After the first 25 were produced, later aircraft were also fitted with the pressurised cabin of the Mk X and the fuel capacity was increased to 256 gallons, three-and-a-half times that of the original Spitfire.
The first Mk 19s entered service in May 1944, and, by the end of the war, the type had virtually replaced the earlier Mk XI. A total of 225 were built with production ceasing in early 1946, but they were used in front-line RAF service until April 1954. In fact, the last time a Mk 19 was used to perform an operational sortie was in 1963 when one was used in battle trials against an English Electric Lightning to determine how best a Lightning should engage piston engined aircraft. This information was needed in case RAF Lightnings might have to engage P-51 Mustangs in the Indonesian conflict of the time. There is an unsubstantiated rumour that the air combat simulator used to train RAF Tornado pilots retains the aerodynamic data for this Spitfire, and that the simulated aircraft is sometimes allocated a pair of Sidewinder missiles to even the odds.
This particular plane (PS890) was modified in 2002 to use a Griffon engine from an Avro Shackleton driving a contra-rotating propeller. Originally, a normal five-blade propeller was fitted.