4CP | Four Color Process

See also: http://comicbookcartography.posterous.com/tag/baxterbuilding

Part of the series Cosmic Debris: Kirby in the Seventies.

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Sources: Imps from an early '70s reprint of an Atlas horror comic, illustrated by Bill Everett. Billows from a mid-60s "Supergirl."

Source: "Action Comics" #265, July 1960.