| Issue | #271 |
| Published | December 1960 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Superman [Clark Kent] |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Reprinted | in Albi del Falco (Arnoldo Mondadori Editore, 1954 series) #264 (May 7, 1961) [Italy]; in Showcase Presents Superman (DC, 2005 series) #2 |
| Characters | Superman [Clark Kent]; Lois Lane; Lex Luthor (villain); Luthor Robot; Supergirl [Kara Zor-El] (Cameo); Krypto (Cameo); Gypo (Luthor's henchman) |
| Synopsis | Lex Luthor has an elaborate plan to trap Superman by posing as aliens from another dimension. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Al Plastino |
| Inks | Al Plastino |
| Reprinted | in Albi del Falco (Arnoldo Mondadori Editore, 1954 series) #264 (May 7, 1961) [Italy]; in Showcase Presents Superman (DC, 2005 series) #2 |
| Characters | Superman; Supergirl; Streaky (intro); X-Kryptonite; Jerro (statue); Lori Lemaris (statue); Ronal (statue); Supergirl's Fortress of Solitude; Professor Damon Brant (villain); Mrs. Brant (villain); Mrs. Hart |
| Genre | superhero |
| Script | Jerry Siegel |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Reprinted | in Action Comics (DC, 1938 series) #334 (March 1966); in Supergirl Archives (DC, 2001 series) #2; in Showcase Presents: Supergirl (DC, 2007 series) #1 |