on-sale date from promo in Strange Adventures #202
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (added by Greg Fischer, October 2007).
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Pages 12 and 23 are half-pages.
Letters of comment from readers Steven Schumer, Frank Klein and Guy H. Lillian III, with replies from Schwartz.
In between pages 12 and 13 of sequence 1.