This wonderful picture shows a trio of early Matchless G50s outside the Associated Motor Cycles (AMC) works, while, as a backdrop, a host of swaddled twins wait to be delivered wherever they were due.
Now, it could be an optical illusion, but the wrapped machine on the left looks to have the megaphone-type exhausts used on Matchless, with, next along, the more regular pipes as used on the AJS.
What is not in doubt, though, is the trio