This issue is a variant of Detective Comics (DC, 1937 series) #543 [Direct]. There exist further variants.
Color credits confirmed by Anthony Tollin.
Continued from Batman (DC, 1940 series) #376.
Continues in Batman (DC, 1940 series) #377.
Letters of comment from Brian Linnen, Susand M. Murrie, Michael Wallis, Fred Grandinetti, Eric Jones, Delmo Waters, Wallace Lee Hopkins, David J. Kenney, Eric James Baich, Robert Pierce, Joe Atura, Jeffrey Lowndes and Jef Peckham.