Acoording to my Spitfire the history book the Serial no was R6622. Which was flown by Sgt Oldfield shot down and killed on the 27/09/1940 I will try to find the code as soon as possible.
I hope that helps so far.
Glen.
Thanks For that Alex but was the G-91R1/R2 in PRU Blue as most aircraft in Nato at time Was like the Early RAF F-86 Sabres Where in PRU Blue and later ones where in Aluminium.
Thanks Again.
Glen.