Receive a 10% credit in your Beckett Wallet for each friend who successfully places an OPG order.Your friend will also save 10% on his first OPG purchase.
Randomly inserted into packs, these 44 cards feature original Mark McGwire Upper Deck cards which were bought in the secondary market and then were authentically autographed by McGwire. Since there were only 250 cards signed in totality for this product and no more than six of any one card, we have not priced these cards due to market scarcity.
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Market Report
