1988 Topps #580 Mark Mcgwire – SGC NM+ 7.5 on Goldin Auctions

1988 Topps 580 Mark Mcgwire – PSA NM-MT 8 on Goldin Auctions

1988 Topps 580 Mark Mcgwire – PSA NM-MT 8 on Goldin Auctions

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Steve Novella Offers PSA Graded Baseball, Football and Basketball Cards Ending September 1-3, 2020 – Auction Report

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Auction Prices Realized Baseball Cards 1988 Topps Mark McGwire

Postwar Card Sets - Issuu

6 Most Valuable Mark McGwire Rookie Cards - Old Sports Cards

Postwar Card Sets - Issuu

Postwar Card Sets - Issuu

Auction Prices Realized Baseball Cards 1988 Topps Mark McGwire

Auction Prices Realized Baseball Cards 1988 Topps Mark McGwire