I can't give you an exact value but we both know it's worth quite alot. It will be worth the most at a well advertised auction in the Boston area. Check and see where "Antiques Roadshow" is going to be filming next and take it there for appraisal. Who knows, you might get to be on TV. Keep it in a safe, protect environment. Out of direct sunlight until then.
A 1975 Boston Red Sox Team Signed Baseball with the key signatures: Yastrzemski, Fisk, Evans, Cooper, Rice, Lynn, Conigiliaro, and Tiant is worth about $400.-$600. Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Prices may also vary based on the amount of signatures, and key signatures acquired. The more complete the baseball with key signatures the more valuable. Johnny Pesky and Don Zimmer were coaches for the 1975 Red Sox, and would be included in the price stated above. If the signatures are not properly authenticated the baseball could sell at half the market value or less. If your baseball is not from 1975 you could find more information on team signed baseballs from other years, links to full team rosters, key signatures, and price guide below (see Related Links)
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