Justice League of America 1960 #107 - 7.5 - $30.00

Uncle Sam has summoned the Justice League and Justice Society to his Earth.

During an annual meeting between the JLA and JSA, six members and the Red Tornado (accidentally interfering with the transmatter machine that transports the two groups between Earths 1 and 2) are accidentally transported to another Earth, in which the Nazis won World War Two. The seven heroes are able to defeat a small group of Nazi soldiers, but are almost defeated by sonic machines when the Freedom Fighters, led by Uncle Sam, take the heroes away and explain what's going on. The three groups learn of machines around the world controlling everyone's minds, and set about to destroy them all.

On-sale date from Comic Reader #97.

• Crisis on Earth-X! - Colors credit from Carl Gafford via the GCD Error Tracker. Story concludes in issue #108.
• Now There Are 14 Prehistoric Scenes. - Ad for models of prehistoric scenes. Between pages 4-5 of story.
• Woods Edge / Tank Trap - Ad for games Woods Edge and Tank Trap, with toy figures, from Helen of Toy, Co. Between pages 7-8 of story.
• Read This Story if You Want to..."Get it All Together"...When You Get Out of the Service - Ad for electronics training, targeted to returning servicemen. Between pages 9-10 of story.
• - Ad for toys and novelties. Between pages 13-14 of story.
• Just Put an X Next to the Comics You Want! - House ad for subscriptions to DC Comics. Top of page between pages 13-14 of story.
• The New Magazine of Weird Humor! - House ad for Plop! (DC, 1973 series) #1, on sale June 21st, with cover shown. Bottom of page between pages 13-14 of story.
• Gold Crown / Supreme Command - Ad for games Gold Crown and Supreme Command, with toy figures, from Helen of Toy, Co. Between pages 15-16 of story.
• Enter The Wonderful World of Amazing Live Sea-Monkeys - Ad for Sea-Monkeys from Unicorn House and Transcience Corporation. Top of page between pages 21-22 of story.
• The Super Catalogue - Ad for catalogue of comics, magazines, and books. Bottom page between pages 21-22 of story.
• Biggest Bargain in Comics - House ad for 100-Page Super-Spectacular (DC, 1973 series) #DC-20, on sale the second week in June, with cover shown. Bottom of final page of story.
• - Letters from Ray Engelberg and Mike W. Barr.
• Famous Name Prizes or Cash...the Easy Olympic Way! - Ad for sales people for Christmas cards.