Green Lantern (1960-1988 1st Series DC) #21 GD+
Published Jun 1963 by DC.
Cover pencils by Gil Kane, inks by Murphy Anderson. The Man Who Mastered Magnetism, script by John Broome, pencils by Gil Kane, inks by Joe Giella; The origin of Dr. Polaris. Hal Jordan Betrays Green Lantern, script by Gardner Fox, pencils by Gil Kane, inks by Murphy Anderson; After helping to catch some art thieves, Carl Ferris begins to suspect Hal Jordan is really Green Lantern. 32 pgs. $0.12. Cover price $0.12.