Justice League of America 1960 #108 - reader copy - $6.00

The three teams split up to tackle the machines controlling the Earth. When the three groups confront the final machine inside of an orbiting satellite, the machine reveals its origins of how the Nazis created it to help run things, but it eventually turned on its creators and Adolf Hitler himself seeing them as inferior per its programming. The last machine is destroyed by Red Tornado's sacrifice yet again, and the three groups, triumphant, return to their respective earths along with the surviving Red Tornado, who chooses to stay on Earth-1.

On-sale date from Comic Reader #99.

• - Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Erroneously stated on cover as a fight between "two different Earths" when it should have been three.
• Thirteen Against the Earth! - Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Colors credit from Carl Gafford via the GCD Error Tracker. The Freedom Fighters join the annual JLA-JSA team-up. The Freedom Fighters are next seen in their own series in 1976.
• The Biggest Bargain in Comics! - house ad for 100-Page Super-Spectacular (DC, 1973 series) #DC-22
• The Dramatic Break-Thru from the Line of Super-Stars! - house ad for Limited Collectors' Edition (DC, 1972 series) #C-29, on sale the second week of August
• - promo for DC comics on sale during the third week of August 1973
• - letters from: Joe Arul, Guy H. Lillian III, Mike W. Barr, Jim Balko, Steve Walsh