Oh yeh I should have put you into the direction of peter kassak I have illustrated alot of P-51Bs of that unit for him I somehow totally forgot to think of sending you that way. Thankyou for the photos I will go through them now. The paintscheme is a very well known scheme for the 31st FG its just working out ther serial which you now have and then the code WZ ?? Hopefully we can track it down