Atlas Club, Inc.
From superman.nu: Supermanica
Atlas Club, Inc.
A Metropolis strong men's club which is open to anyone who can pass the demanding feats of strength—such as bending an iron bar—required for membership. In September-October 1952 a gang of criminals, convinced that one of the club members must secretly be Superman, begins systematically trying to murder them all to determine which of them is invulnerable, but Superman thwarts all the attempts and takes the villains into custody (S No. 78/2: "The Strong Man Club!"). (TGSB)