Clarksburg, WV: Saucerian Books, . First Edition. Quarto (27.5cm.); publisher's blue-grey pictorial card wrappers; 80pp.; illus. Wrappers rather rubbed and toned at extremities, previous owner has briefly colored in part of the upper cover illustration, else Near Very Good and sound. Account of the UFO studies ("Project Sign," "Project Grudge," and "Project Blue Book") conducted at the Wright-Patterson Air Force Base during the late 1940s.