Printed in U.S.A.
On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 8, Part 2, Number 1, Periodicals, January-June 1954. Class B periodical. Copyright registration number B455189.
Inker identification by Bob Hughes.
Compare "The Interplanetary Circus" in Superman (DC, 1939 series) #145 (May 1961).