Quote:
Originally Posted by Jim65
Just picked up 2 Mets proofs, I have no idea why one is on whiter stock, fronts are blank .
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In 1980 there were uncut sheets (folded in three panels) that featured only the team cards. They were on thinner stock and had a lighter back just like your card. Maybe it's a proof from those sheets. I doubt I still have any, but if I run across them I'll post a pic.