In 1955, Kellogg's Sugar Smacks cereal boxes gave-away a set of three comics and include titles Duel in space, The Superman time Capsule! and The Supershow of Metropolis; they were published by DC National Comics Publications Inc. The Supershow of Metropolis is a story based in Superman's pal Jimmy Olsen. But I don't wanna tell you about it, just read the book here.
Kellogg's Sugar Smacks 1955. Copr. 1955 National Comics Publications Inc. Pictures by Jay Hernandez, 2009.