I recently picked up a giant lot of NASCAR postcards and premiums including a run of Petty PCs starting in 1962.
The earliest, a 1962 postcard from Racing Pictorial, shows a 25 year old Richard with his father Lee. It is from a set of Daytona PCs from 1962. That's the lower one shown. The top one is from 1972. I like the inset image, too cool for school. What I did not notice until yesterday was that the 1972 PC is signed at the lower right. Nice vintage ballpoint signature.