Dave / Icare,
Thanks for the prompt replies.
My apologies. What I didn't mention in my post was that I had already done a little bit of research, that was how I found the unit and serial number. However, having had a brainf*rt I logged this wrongly in my initial post. Thanks for the correction.
This aircraft is only two down the production line from P4403. This was flown by Sqn Ldr Learoyd when he won his VC for bombing the Dortmund-Emms canal. This machine is one of the options in the re-issued Airfix kit. I'm going to assume that the colour schemes and demarcations on the Learoyd machine, and P4405 were the same. Now all I need to find out is whatever code letter she had at the time.
Thanks again for the assist - I'll pass the info on to my mate.
Regards
Bob