[FrankWakefield]

When I first heard of these, I fell in with the thinking that they're Colgan's proofs. I bid on a few of them, never won one. Now, it seems to me that they don't antedate Colgans. What seems more likely to me is that after Colgans sold to Auto Sales, at some point in time Auto Sales quit with the round baseball cards... and evidently, shortly thereafter, someone put square ones of a similar nature in with various candy products. Square ones would have been easier to make, and easier to put in with a piece of caramel or chocolate. So I think the Colgan's proofs aren't proofs at all, but some 'after the fact' production that postdates Colgans.