Superman #21 Add favorites 19-04-2017, 11:29 540 Publisher: DC Year: 2017 Pictures: 23 Language: English Size: 33.8 mb. Tags: Superman DC DOWNLOAD Superman #21: Related comics: 21 pages | 23.76 Megabytes Superman #7 21 pages | 25.02 Megabytes Superman #6 21 pages | 21.74 Megabytes Superman #5