Collection: Jack Sharkey Signed Checks and Documents

Jack Sharkey was a heavyweight boxing champion whose name still carries weight with collectors of vintage sports memorabilia. Signed financial documents and personal papers from champions of his era are scarce survivors, offering a tangible link to a fighter whose career is part of boxing history.

This collection includes signed checks, some authenticated and certified, drawn on Shawmut Bank, along with a signed appearance contract from the 1970s. Buyers should look closely at the authentication and certification markings noted on individual listings, as well as the bank and date details visible on each check, since these documents vary in format and origin despite sharing Sharkey's signature.