The magnificent Dick DuBois. He's always been a favorite of mine, [he gets extra points for a name that's a pun in two languages].
This photo, credited to Athletic Model Guild, appears on the back cover of the October/November 1961 issue of Muscles magazine.
While there are lots of familiar faces and bodies, this Brussels-based magazine has it's own stable of physique photographers including Europhoto, Ferrero, Photos Stan, and Photo Swede.
We have a handful of Muscles available at Homobilia.com, along with the great French magazines La Culture Physique and Sciences Culturistes.