This fantastic issue of Justice League of America #123 published by DC Comics in October of 1975 features fantastic cover art by Ernie Chan. The Justice League of America and special guest stars, the Justice Society of America and Cary Bates and Elliot S! Maggin from the DC Comic office on Earth-Prime star in an adventure titled "Where on Earth Am I?" with plot by Cary Bates and dialogue by Elliot S! Maggin and art by Dick Dillin (pencils) and Frank McLaughlin (inks). On Earth-Prime, Cary Bates and Elliott S! Maggin are contemplating the next issue of JLA to write for their world when they both go into Carmine Infantino's office and accidentally stumble upon the Cosmic Treadmill Earth-1's Flash left behind. Accidentally, they activate it, and Cary Bates disappears to Earth-2 as a villain, with superpowers. Maggin follows behind,but lands up on Earth-1 instead with the JLA. The JLA then goes to Earth-2 to help out the JSA, who has been fighting the Injustice Society, and accidentally 'kill' each member, revealing the members were actually disguised JSAers. The JLA then vow to stop the Injustice Society and bring them to justice for the JSAers. To be continued Justice League of America#124.  This vintage comic book from the Bronze Age era is part of the DC Universe, offering superhero team action and features some of the most iconic heroes of DC comics such as, Batman of Earth-1, the Flash of Earth-1, Green Arrow, Black Canary, Aquaman, Hawkman of Earth-1, and special guest stars, the Justice Society: Robin of Earth-2, Wildcat, Wonder Woman of Earth-2, Johnny Thunder & his Thunderbolt, Hourman, Dr. Mid-Nite and making there first comic book appearance Cary Bates & Elliot S! Maggin of Earth-Prime. This comic is graded 6.0 Fine and comes bagged and boarded for protection and preservation. This collectible single issue is a must-have for DC Comics, superheroes, the Justice League, the Justice Society, the DC Universe and Bronze Age comics. Please view pictures carefully and if you have any questions don’t hesitate to message me, thank you.