Thank you Ric

Yes - beware of old aircraft, white t-shirts and new cameras.
Thanks Humayun. I've sent a copy off to the Historic Aircraft Restoration Society (which I'm thinking of becoming a non-active member of) and will hear what they say. I suspect that the P40 is also one of theirs, but I'm yet to find out.
Thanks Mike

Something different eh?
Thanks Jay

Thanks for your comment. I'll have to look up what you mean by the B.oB. reference! Interesting period comparo.
Thanks too Dean! Yep, it ached to be vignetted and treated to a slight sepia tone.