This issue is a variant of Detective Comics (DC, 1937 series) #558 [Direct]. There exist further variants.
On-sale date from DC Releases #20.
Giordano inks credit from original indexer and found in Amazing Heroes #79; Janson credit from DC Releases #20, seconded by Tony Rose and Jim Van Dore; Bob Smith also suggested as possibility by David Bachman (who submitted the information from DC Releases). Colors credit confirmed by Anthony Tollin.
Story continues from Batman (DC, 1940 series) #391.
Letters of comment from C. E. Dinkins, Ricky D. King, Jeff Mitchell, John Coates, Christopher Allen, John Lavernoich and Duane Spurlock.