Original indexer credited Neal Adams on pencils but Nick Caputo believes Adams only redrew the Supergirl figure and the rest of the cover is Cardy pencils and inks.
Keith Chandler : Yes, of course. The styles of both artists are so distinct.
Contents listing with small illustrations of characters.
A previously unpublished story, written and drawn in the 1940s.
Script credit from The Secret History of Wonder Woman by Jill Lepore (Alfred A. Knopf, 2014).
Keith Chandler : The job number CC 24 suggests this was originally scheduled for an issue of Comic Cavalcade.
Previously unpublished. Script, pencils, and inks credits from the reprint in Black Canary Archives.
Tom Orzechowski believes the lettering is by Gaspar Saladino.
Keith Chandler : The face of the crook Nifty appears to be inked by Kubert throughout.
Script credit verified via Julius Schwartz's records. Story page credits a "Robert Starr" which was a pseudonym Julius Schwartz used to make it look like he had more writers. (Bob Hughes via email.)
Toth credits both himself and Barry in a box in the third panel of the final page.
Pages 6 and 15 are 2/3-pages.
Illustration is a panel from the Sargon story in Sensation Comics (DC, 1942 series) #57, which is signed by Joe Kubert.