Published: May 1967
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Story Featuring Superman
When Perry White discovers a caveman skeleton dressed in a Superman costume, Superman travels into the past to investigate, but is trapped in prehistoric times because Earth's sun is red in that era.
Story Featuring Cap's Hobby Hints
"I'm sure I'll enjoy making that model car, Mr. Cap."
hint submitted by Bob Warren of Park Forest, Illinois
Story Featuring Supergirl
A band with members that dress up as Green Lantern, Batman and Green Arrow are using their performances to commit robbery.
Reference to "Kryptonite-Plus", a super-powerful version of Kryptonite.
Story Featuring Superboy
"Crunch! Yip! Blam!"
House ad for Superboy (DC, 1949 series) #138 [80 Page Giant #G-35], on sale March 14.
Story Featuring The Maniaks
"They're more devastating than a pygmy invasion!"
House ad for Showcase (DC, 1956 series) #68 [first Maniaks], on sale March 23.
Letter Column Featuring Metropolis Mailbag
Letters submitted by Dan Morrison, Irene Vartanoff, Barrett Huntington, Virginia Wheeler, Jerry Giuseff, Hank Goldberg, and David Lewis.
Inside back cover.
In-House Column Featuring Direct Currents
Includes cover repros of Atom # 31 and Superboy # 139.
© 2026 Dollar Bin Longbox. All data courtesy of the Grand Comics Database.