Boxer known as 'the Boston Strong Boy.' Fighting on turf, and with bare knuckles, Sullivan became the heavyweight champion of the world under the London Prize Ring rules by defeating Paddy Ryan on February 7, 1882. Ten years later, on September 7, 1892, he lost the championship to James J. Corbett under the new Queensberry rules. Noted for his personality and strength, Sullivan was the first nationally famous boxing champion. ALS, one page, 5.75 x 9.5, St. James Hotel letterhead, May 9, 1908. Letter to another gentleman. In part, 'Find herewith 5.00 dollars I trust it will do some good. I know of nothing within the hotel line, in fact everyone seems to be rather anxious.' Double matted with a photo of Sullivan in a boxing pose, to an overall size of 16 x 10. In very good condition, with scattered light toning and soiling. RRAuction COA.