I’ve always been disappointed that PAN didn’t give away more bits and pieces linked to their titles unlike Penguin but I have managed to get hold of a calendar given away in 1974 to coincide with the publication of ‘The Pin-up: A Modest History’ by Mark Gabor.
           

To see the calendar containg images of disrobed ladies click HERE

I noticed that this book has been reprinted by Taschen in 2000 with the same cover as the PAN edition.