Wanted – Historic aviation pictures.

Firstly I’m new to this site, so if this is the wrong forum please accept my apologies and kindly point me in the right direction.

I have recently moved house and now have a largish study with large blank spaces on the walls, which need to be filled.
I’m trying to locate some good quality photos of historic aircraft, that will stand printing at about 50×40 cm (20×16 ish ins) so that they framed and hung. I guess I’m really looking for pre 1970’s b&w pictures of some of the less common aircraft.
Any copies made would be purely for my own use and not used for publication or re-sold in any shape or form.
Can anyone help?