A magnificent offering of 13 signed and graded magazines of "The Greatest," these publications range from 1963 until 1975 with one from 1988. All have been signed in blue Sharpie or silver pen. Six Sports Illustrated are signed Muhammad Ali including: March 1964, June 1965 (2), April 1966, July 1967 and April 1988. Four are signed Cassius Clay including: June 1963 Sports Illustrated (first Ali SI), 1964 Life, March 1964 Sports Illustrated and May 1969 Sports Illustrated. Three are dual-signed including: Cassius Clay & Floyd Patterson November 1965 Sports Illustrated, Cassius Clay & Muhammad Ali May 1969 Sports Illustrated, and Muhammad Ali and Joe Frazier October 1975 Sports Illustrated. Overall the magazines are EX, but the important grades are all done by PSA/DNA as are the autographs are graded perfect 10s.