Dennis Tinerino was the coverman of the September 1971 issue of Muscular Development. At this point in his career he had won the 1966 AAU Mr USA, 1967 AAU Mr America and the 1968 NABBA Mr Universe. It has been widely noted that up to this point Dennis had not enhanced his incredible physique through artificial means. A great read for all.
Source: Muscular Development (Sep 1971)
