 There were no issues 1, 2, or 3.The first three issues published (4, 5, and 6) had subtitles — the first two of which were later used for ongoing comics series.The title ran as a part of regular, ongoing series titles for seven issues with the prefix "DC" added to the numbering (DC-7 through DC-13) in addition to the masthead title's own numbering (e.g., Superman #245 was also DC-7).