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Plastic for Cards, I can't Stress Enough!
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02-12-2024, 07:12 PM
Brian
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Join Date: May 2009
Location: New York
Posts: 337
Presumably, the sleeves found in graded card holders (PSA, Beckett, and more recently SGC) are mylar, not polypropylene, and always have been? I never really thought about that until now, but I hope so.....
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