DS, signed “Edwin Balmer” on the past page and “Philip Wylie” on the second to last page, 15 pages, 8.5 x 11, December 14, 1951. Agreement between the authors and Paramount Pictures. In part: “They are the sole authors of a certain story entitled AFTER WORLDS COLLIDE, which story is wholly original with them and has not been copied in whole or in part from any other work…That said story was first published in the United States of America in the Blue Book Magazine…The Authors, jointly and severally, hereby convent, grant and assign to the Purchaser all the motion picture rights.” In fine condition, with uniform toning and some light creases. RRAuction COA.