1968 Topps 3D Stamped Proof?
I am looking for help in identifying this card, which I believe is a 1968 Topps 3D stamped proof / prototype - is this correct? If so, can anyone provide me with some more insight and information on this specific card?
From the research I've done, it looks like this set is normally pretty pricey and the prototypes with this stamp are even more pricey - is this also correct?
How much is this card worth?
Should I get it graded? Would SGC / PSA encapsulate this card?
Thanks in advance!
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