Copyright 1954 by Commercial Comics, Inc., 1507 M Street N.W., Washington 5, D.C. listed at bottom of inside front cover. On back cover: Produced in the interests of American Education by the Copper and Brass Research Association, 420 Lexington Avenue, New York 17, N.Y. Also states that the facts of the comic were reviewed by the Copper Division, BDSA, U.S. Department of Commerce, Washington, D.C. The teaching aid was produced in consultation with the Official Committee of the National Science Teachers Association.
Later printings on the bottom inside the front cover say: Produced by Commercial Comics, Inc., Washington, DC. ?