Stamp on 1936 National Chicle Fine Pen
I recently picked up a 1936 National Chicle Fine Pen Premiums R313 Hank Greenberg. The back of the card has two stamps with an anchor/sword design and the letters “C” and “H”. I attached a photo for reference. I haven’t been able to find anything about this stamp design, so I resorted to using ChatGPT for ideas. According to ChatGPT, this is possibly a watermark stamp used by National Chicle during that time. I’m not sure if this is correct.
Does anyone know if this stamp design was possibly used by National Chicle, or if these stamps might have been added by the store/establishment where the card was originally acquired?
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