These record sales highlight rising market for historic sports memorabilia - Sports Collectors Digest
A Collector's Guide to Today's Top Baseball Memorabilia – Robb Report
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Jackie Robinson Rookie Cards, Baseball Memorabilia and Collectibles Guide
Jackie Robinson Signed And Inscribed Baseball Available For Immediate Sale At Sotheby's
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Most Expensive Sports Memorabilia
Diego Maradona's 'Hand of God' Jersey Sells for $9.3 Million - The New York Times
Ken Goldin, The King of Collectibles: A Tour Of His Most Mind-Blowing Sports Memorabilia And The Stories Behind Them - BroBible