Bill Melby was a champion bodybuilder in the 1940s before becoming a pro wrestler in the 1950s. Impressive in its time, Melby's physique was featured in many beefcake/muscle magazines in the post-war era. As a wrestler, Melby was a fan favorite and he often battled the most vicious heels. The screen caps below are from a 1957 bout of Melby going up against the dreaded Sheik; you can watch the action here. (Thanks to Mark for leaving a comment on Melby in the previous Vintage Beefcakes of Wrestling post.)
Bill Melby faces The Sheik
The Sheik seems to be pointing at a hidden foreign object.