3Xs. The 3Xs are a famous trio of crime busting brothers. No origin is given to them. 1X is the Sam Spade like detective of the brothers; 2X is the bald "walking encyclopedia," and possible inventor (he uses a "disintegration gun"); and 3X is the hulking "strong arm" of the brothers.
First Appearance: Mystic Comics #1 (Marvel), Mar 1940. 1 appearance. Created by Robert O. Erisman and Newt Alfred.
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