Giant-Size Fantastic Four #2 (1974)

"Cataclysm!" Story by Gerry Conway. Art by John Buscema and Chic Stone. Someone has accidentally activated the time machine at the Baxter Building and created havoc on Earth! The FF must travel back in time to repair the damage. Mr. Fantastic and the Human Torch journey back to the American Revolution to free George Washington, while Medusa and the Thing go back to the Roaring 20's.

Back up story: Reprint of Fantastic Four 13.

Cover by Gil Kane. Book title was formerly Giant-Size Super-Stars.  64 pages. Good condition.