Boxer known as the ‘Boston Strong Boy’ (1858–1918) recognized as the last heavyweight champion of bare-knuckle boxing under the London Prize Ring Rules. Personal check, 7 x 2.5, filled out in another hand and signed by Frederick Willets, payable to John L. Sullivan for $50, January 5, 1889, endorsed on the reverse by Sullivan, “John L. Sullivan.” In very good condition, with multiple folds passing through the signature, scattered soiling, and a cancellation cut significantly affecting the first letter of the signature. Later this year, on July 9, 1889, Sullivan would successfully defend his world title by defeating Jake Kilrain in what was the last-ever bout under the bare-knuckle London Prize Ring Rules. Highly desirable in any form, this is the only check—endorsed or otherwise—that we have ever encountered. Pre-certified Steve Grad/PSA/DNA and RR Auction COA.
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