On-sale date from copyright registration.
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Story across 23 pages in two parts of 11.5 and 10.5 pages.
house ad for The Flash (DC, 1959 series) #178 [80 Page Giant #G-46]
house ad for Showcase (DC, 1956 series) #74
letters submitted by Tom Peyer, David Lewin, Jeff Pierce
house ad for Secret Six (DC, 1968 series) #1, on sale February 1
Statement of October 1, 1967
Average number of copies sold during preceding 12 months (total paid circulation): 184,100
Actual number sold for issue nearest filing date (total paid circulation): 201,500
Owner: National Periodical Publications, Inc., Estate of Harry Donenfeld, J.S. Liebowitz, P.H. Sampliner, Irwin Donenfeld, S.U. Sampliner, Sonia Mondschein, all at 575 Lexington Avenue, New York, N.Y. 10022
listing of DC comics on sale in late January and early February 1968; includes cover art for Action Comics (DC, 1938 series) #361 and Blackhawk (DC, 1957 series) #240