Cover by Bob Brown. 1st appearance of the Space Ranger in "The Great Plutonium Plot," script by Gardner Fox (plot) and Edmond Hamilton (script), art by Bob Brown; A renegade scientist is stealing all the Plutonium in the galaxy; He hopes to rule the Solar System with his "Teleportator," but needs the radioactive chemical to power it; The Space Ranger follows a few space pirates (via an Audium trail - soundwaves) and is able to locate their hideout. "The Robot Planet," script by Gardner Fox (plot) and Edmond Hamilton (script), art by Bob Brown; Rick Starr finds an odd machine floating in space and takes it aboard his ship to study back at headquarters; Later, he and Cryll receive a surprise visit from Myra, who tells them that there are odd machines orbiting the sun, pulling the planets, including Earth, out of their orbit; When she sees the machine they were examining, Myra exclaims that it's just like the others; Rick is determined more than ever to examine the machine and get to the bottom of this threat; He finds that the device is made from a metal found on a world in the Sirius system, and he takes off with Myra and Cryll to find out more. Space Ships of the Past, art by Jack Kirby. 36 Pages, Full Color. Cover price $0.10. Grade: VG- 3.5 explanation of grade Condition: Used (collectible)