John L. Sullivan was the last World Heavyweight Champion from the bare knuckle era. He won the title in 1882 from Paddy Ryan and successfully defended it against Charlie Mitchell, Jake Kilrain and others over a ten year period before losing it in 1892 to James J. Corbett. Presented here is a rare signed cabinet card photograph of John L. Sullivan. Sullivan has signed and inscribed this cabinet twice, on both the front and reverse in fountain pen. The cabinet card is 4” x 6 ½”. It has chipped corners and some edge chips. There is a crease which has been reinforced on the reverse with tape. Some light spots. It is quite rare to have Sullivan’s signature on a photograph, not once, but twice.