Fold out poster from vintage Muscleboy magazine April May 1966. The art magazine of physique photography for painters, sculptors, bodybuilders. Beefcake magazines were published in the era from 1930's through the 1960's. In December 1945, Gay pornography pioneer Bob Mizer founded Athletic Model Guild, or AMG. From 1964 to 1967, Clark Polak published DRUM magazine. Measures 11 x 17 inches.