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John Racanelli – SABR's Baseball Cards Research Committee
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Beckett Sports Card Monthly - January 2022, PDF
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Calaméo - Spring 2023
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Baseball Cards, Coins & Jewelry 11/12 Mantle Ruth & More!
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Mavin 1988 Donruss RC #40 1989 #17 #255 Mark Grace MLB Chicago
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1988 Donruss Mark Grace #17 Values - MAVIN
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25 Most Valuable 1989 Donruss Baseball Cards - Old Sports Cards
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1989 Topps Bazooka #12 Mark Grace NM-MT Chicago Cubs
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