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Sports Collectors Digest July 1, 2022 (Digital)
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Froggers House of Cards Sports Memorabilia and Trading Cards
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2023 Topps Throwback Thursday Baseball Checklist, Set Print Run
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PSA Magazine: 2023 April #016 by PSA Magazine - Issuu
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CollX Recently Added Sets
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PSA Magazine: 2022 August #008 by PSA Magazine - Issuu
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2021 Topps Now Baseball Checklist, Team Set Lists, Print Runs, Info
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2022 Topps Pristine Baseball Checklist, Team Set Lists, Hobby Box Info
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Pinnacle and Score – SABR's Baseball Cards Research Committee