I wasn’t aware of this site but my regular correspondent John O’Hare sent me the link.
This stuff is right up my street. Here is a cross section of what I have found there.
First a letter from Mick Jagger to Andy Warhol about the cover for ‘Sticky Fingers’
How about this high resolution photo of London in 1949? If you click here you’ll see other photos and you can enlarge to full screen.
And what about this postcard of a hotel from 1969?
Then there’s a whole page of 60s and 70s Soviet car ads
But really there is just a whole treasure trove of stuff.
Expect to read more about it!