MUHAMMED ALI SIGNED AUTOGRAPH PAMPHLET BOXING CASSIUS CLAY. Authenticated & slabbed by PSA/DNA. The item "MUHAMMED ALI SIGNED AUTOGRAPH PAMPHLET BOXING CASSIUS CLAY PSA/DNA SLAB" is in sale since Monday, June 7, 2021.This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Boxing\Other Autographed Boxing Items". The seller is "madcam13" and is located in Gaithersburg, Maryland. This item can be shipped to United States.