Posted By:
davidcyclebackYou can judge the age of the photo cards.
This was the exact question posed by Leon about his cards, and it was deduced that the cards were vintage. They were pasted into an album and the cards are so rare it's not as if someone's been pumping them out. For many of us, including myself, these are the only examples of the issue we've seen and had not even heard of them before.
As already noted, perhaps they aren't self developing cards but were factory made, which would mean the new cards from old kit isn't an issue.
While the Ray O Prints and Topps Magic are relatively plentiful, most of the vintage baseball self developing baseball cars are rare on the order of Leon's cards. Even some from the 1950s you rarely see on eBay or Mastro.
Some of the self developing kits included a metal frame to put the photo in, including the Ray O Prints. Obviously, it's safer bidding when the card has the original frame.
With the self developing cards, the only area where later reprints is a big issue is with the Ray O Prints where loads of high grade complete sets are floating around. There was only one negative/personality per kit, so a kid have to buy all the different kits to complete one set. With the other self developing issues, I'm not aware of a problem.