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AEDRoberto Alomar Game-Used & Signed Cooper Pro 100 Bat
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About Auction
LiveJul 20, 2026
Harrington’s is proud to present a Premier Baseball Memorabilia Auction on Monday, July 20, 2026 at 11:00 AM EST (Online Only), featuring an exceptional lineup of investment-grade collectibles tied to baseball’s most iconic figures. Highlights include game-used and signed bats, autographed baseballs, rare vintage baseball cards, and limited-edition signed photos and memorabilia from legends including Mickey Mantle, Babe Ruth, Joe DiMaggio, Willie Mays, Jackie Robinson, Hank Aaron, Sandy Koufax, Ken Griffey Jr, and many more. Harrington's Auctions nicole.c@harringtonsauctions.com
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- Lot Description
Roberto Alomar Game Used Signed Cooper Pro 100 Bat - JSA Certified Autograph (Greenshields Collection)
A Cooper Pro 100 professional model bat attributed to game use by Roberto Alomar, Hall of Fame second baseman and cornerstone of the Toronto Blue Jays’ back-to-back World Series championship teams in 1992 and 1993. The bat is signed by Alomar and presents as a strong example of a professional gamer from one of the most accomplished players of his era.
The bat exhibits heavy and consistent signs of professional use including numerous ball marks, seam impressions, surface wear, and a heavily taped handle. Player model and professional designation markings are visible on the barrel, along with Cooper branding. The signature remains clearly visible on the barrel.
Alomar is widely regarded as one of the greatest second basemen in MLB history, a 12-time All-Star, 10-time Gold Glove winner, and 2011 Hall of Fame inductee. His central role in the Blue Jays’ championship teams makes his game-used material especially desirable among Canadian collectors.
Authentication & Provenance
The signature on the bat has been authenticated by James Spence Authentication (JSA) and is affixed with a corresponding sticker.
The bat itself is not accompanied by third-party game use authentication but originates from the Greenshields Collection, a long-held private collection assembled over many years.
Condition
Very good overall condition with heavy game use evident throughout, including ball marks, surface wear, and a taped handle. No major structural damage observed.
Details
Player: Roberto Alomar
Manufacturer: Cooper
Model: Pro 100
Use: Game Used (Attributed)
Authentication: JSA COA (Signature Only)
Provenance: Greenshields Collection - Shipping Info
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