Mystery in Space 1951 #71 - reader copy - $15.00

Adam and Alanna battle some crytal conquerors from Karalyx.

Information on Martian moon Phobos, Neptune's moon Nereid, Saturn's moon Titan, and circular orbits of satellites.

On-sale date from copyright registration.

• Still 10? - This is an advertisement for DC comics: "Still 10c and still the best value in comics magazines at any price! Look for this label at your favorite newsstand... it's still your guarantee of the best in reading pleasure!" Appears on the inside front cover.
• The Challenge of the Crystal Conquerors! - Story is in two parts of 7.67 and 8.67 pages.
• Tootsie Roll Makes History! - At the bottom of page 8 of the previous story sequence.
• - Promotional ad for Sea Devils #2, November-December 1961. On the page immediately following page 8 of the previous story sequence.
• Wanted: Safe Bus Riders! - This PSA ran in several DC Comics cover dated November 1961. On the page immediately preceding page 9 of the previous story sequence.
• Nicholas-Louis De Lacaille - Information for this sequence from Arthur Lortie. Includes banner at the bottom of the page reading: "The Best Comics Are Still 10 Cents."
• - The column includes letters from Richard C. West (MA), Ken Gentry (TN), and Bill Sarubbi (NJ). Replies include information on the first appearance of Adam Strange.
• - This page also includes the promo across the bottom "The Best Comics are still 10c".
• - Promotional ad for Superman Annual #3, Summer 1961.
• - Promotional ad for Batman Annual #1, 1961.
• - Inside back cover.
• 100 Toy Soldiers $1.25 - Back cover.