Released 09/26/1964 - 03/27/1965
From Valiant and Knockout #104 - #130 - 2 pages each for 54 pages - In New York, the incredible Doctor Magno calls together leaders from the major crime syndicates with word that he is putting together a new organization of criminals and they would need to follow him. He shows his prowess by using his eerie control of magnetism to enforce his demands. It is not long before he and the Steel Claw go at it.
Here are the pages I have of it.