London: Neville Spearman Ltd., 1969. First edition. Hardcover. 256pp. Octavo [22.5cm]. Blue boards with title stamped in gilt on spine. Head of spine is bumped. One small stain on front board. Ex-libris UFO enthusiast George W. Earley, with his bookplate on the front pastedown. Earley was a U.S. engineer and editor. He was involved in science fiction fandom during the 1940s. He is the author of "Encounters with Aliens: UFOs and Alien Beings in Science Fiction."
In a dust jacket with soiling and edgewear. Very good + / very good. Item #61226