CHECKPOINT LAMBDA. [New York]: A Berkley Medallion Book published by Berkley Publishing Corporation, . Small octavo, pictorial wrappers. First edition. Berkley Medallion F1263. Pirates seize an orbital space station, kill the crew, and lie in wait for a starship carrying a gold shipment. A Space Patrol officer assuming his first command must sort out the situation and resolve it while Checkpoint Lambda crosses the path of the Five Comets where a collision will destroy it. Reginald 08851. Some age toning to inside covers, some rubbing and spotting to cover varnish, else a very good, unread copy. (#158126).
"BERKLEY MEDALLION EDITION, JULY, 1966" on copyright page.