McIntosh, a center from Lily High School in Lily, Kentucky, was originally planning to play college ball for Tennessee, but their coach lost his job, and the school's interest waned. McIntosh instead attended the University of California at Los Angeles and played for the Bruins under future Hall of Fame coach John Wooden. He was a key reserve for the Bruins as they won their first national title in 1964, playing around 30 minutes in the championship game against Duke and grabbing 11 rebounds. He filled in for starter Fred Slaughter, who barely played after being injured on the game's opening tip.

"This autograph is certified by a 20 year plus member of IADA (International Autograph Dealers Association) , UACC (Universal Autograph Collectors Club), IACC - International Autograph Collector Club), Manuscript Society, SAG (Screen Actors Guild), Southern California Motion Picture Council, APS (American Philatelic Society), ASCC (American Society Of Check Collectors), AFDCS (American First Day Cover Society), Hollywood Heritage Museum, and the Golden State Boxing Association. Additionally a member of the British Autograph Club and German Autograph Collectors Club. The COA issuer has the following credentials: UACC - Autograph Appraisal Course. UACC- Autograph Authentication Course. US Army CID Handwriting Program