Batman #21 [Jock Cover]-Near Mint (9.2 - 9.8) Limited 1 For 25 Variant Cover By Jock.

Zero Year: Part 1 - Witness The New 52 origin of The Dark Knight in BATMAN: ZERO YEAR! Twists and turns are around every corner as Bruce Wayne takes the final steps toward his destiny! And in the backup story, learn more about how different Gotham City was at this dangerous point in time.
(NOTE: 1st appearance of Duke Thomas, later becomes a protégé of Batman named The Signal who patrols Gotham by day - Duke is introduced by name in Batman #30 (2014))