American prizefighter. The son of two former slaves, he was the first African American world heavyweight champion (1908–1915). Vintage fountain pen signature, “Jack Johnson, Former Heavy Champion of the World,” on an off-white 4.25 x 3 slip. In fine condition, with a few slight wrinkles and minor show through from two small tape remnants on reverse. COA Steve Grad/PSA/DNA and R&R COA.
