Mark McGwire Made $128,000 For Every Home Run

Cardinals: Mark McGwire's 70th home run ball once sold for $3 million

Mark McGwire's 70th HR Ball Once Sold for $3M and Is Now Valued at $250-$400K, News, Scores, Highlights, Stats, and Rumors

St Louis Cardinals Archives - Sportscasting

Robert Edward Auctions - The Premiere Sports Auction House

Mark McGwire's $3 Million 70th HR Ball Value Has Plummeted Off a Cliff

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Mark McGwire's 70th Home Run Ball Now Worth Only $250-400K

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Record 70 Home Runs Mark Mcgwire Bradford Exchange Plate

Mark McGwire's 70th HR Ball Once Sold for $3M and Is Now Valued at $250-$400K, News, Scores, Highlights, Stats, and Rumors

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Baseball fan paid $3 million for Mark McGwire's 70th homer in 1998 season – NBC Sports Chicago