Posted By:
davidcyclebackThat is correct.
With old memorabilia, if, after long study and consultation, you
can't find anything bad with the item, that often is indication
the item is authentic. The lack of identifiable negative isn't
proof of positive, but it's good evidence.
I remember a paranoid collector telling me about all the theoretical
possibilities how his authentic-appearing card (sent me email pic)
could be fake, most of which I considered unlikely to far fetched.
I said, "Have you considered the possibility that your card is authentic?"