Spitfire 36 serialled 31036, was originally coded 56. Its RAF serial was PS909.
40 and 13 were 31040 and 31033, ex-RAF PS881 and PS861.
Spitfire 41 was serialled 31021 and was ex-RAF PS869. It crashed on August 12, 1953, with only 208hr to its credit.
This appears to be 31040, numbered 60 and 40, previously PS875.
Aircraft 54 serialled 31034, was PM561. Note the strap holding the tail down.
Spitfire XIX 60, SAF serial 31040 was ex-RAF PS875. It was scrapped on August 20, 1955, with 440hr logged.
One of the two Spitfires numbered 24 undergoes maintenance.
Supermarine Spitfire Mk PR. XIX (S31) Royal Swedish Air Force