Would anyone have information on what was the serial number on W/Cmdr. Pedley's Spitfire V, while in Greece w/337 Wing?

You can see it in the background coded M*P while Pedley and RHAF officers prepare for strikes against Milos and Crete during Spring of '45. I have the ORBS of 335 & 336 RHAF Squadrons during that time as Pedley's Spit did participate in the strikes but not clear which serial number could be.

Any help appreciated.