Muhammad Ali Cassius Clay Signed 1964 Sports Illustrated Magazine AUTO 9 PSA/DNA

Offered is a stunning 1964 Sports Illustrated Magazine boldly signed dual way by Muhammad Ali/Cassius Clay and graded by PSA/DNA RARE. Grading & Authentication: PSA/DNA AUTO 9 Officially Slabbed and Encapsulated by PSA/DNA. PSA has only recently begun authenticating and grading full magazines, and collectors are quickly recognizing how condition sensitive these large format publications are. High-grade examples from the 1960's especially newsstand issues are exceptionally difficult to find.