This issue is a variant of Batman (DC, 1940 series) #423 [Direct Edition]. There exist further variants.
2nd Printing stated in indicia and has only 75 cent US price and no barcode. There is an additional 3rd printing that looks exactly the same but is indicated as such in the indicia.
Color credits confirmed by Anthony Tollin.
Letters of comment from Gene Popa, Charles D. Brown, A. Jaye Williams, Synthetic Poultry, Charlie Harris, Charles Rhett Anderson, The Little White Boy and Malcolm Bourne. Includes "From the Den" column.