Obak Question
As I had stated in an early post I have started to work on a set of 1910 Obaks. I have been actively searching and purchasing for the past few weeks. My question is, I have noticed that it appears that a good amount of these cards out there have a stamped back. I was wondering if any one knows why. Almost all the stamps tend to be in purple ink and range from stamped numbers to just stray shapes and marks,not to many names. I know it was common for people to stamp there name or initials back then, but alot of these make no sense. Are these all from same collector/hoard or was it just some purple stamp craze or something...
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