Comic Title: Mystery in Space #103
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: November 1965
On Sale Date: September 9, 1965 Copyright Date September 9, 1965
Source: Library of Congress, Periodicals 1965

Frequency: Monthly, with the exception of Jan., April, July and Oct.
Cover Price: $0.12
Page Count: 32
Editor: Jack Schiff

Title: "The Billion-Dollar Time-Capsule"
Pages: 8

Feature(s):
Space Ranger

Writer: Dave Wood
Artist: Howard Purcell

Feature Character(s)

• Space Ranger (last appearance in Mystery in Space #101; next appearance in Showcase #100)

Supporting Character(s)

• Cryll (last appearance in Mystery in Space #99; next appearance in Showcase #100)
• Myra Mason (last appearance in Mystery in Space #99; next appearance in Green Lantern #136)

Villain(s)

• Jarret and a gang of time-capsule thieves (no further appearances)

Synopsis:
Space Ranger learns about a series of time-capsule robberies. Evidence suggests the thieves are looking for something in particular. Space Ranger and Cryll split up to try and locate the thieves. Space Ranger fights them on Mars, but they get away. Myra then tells him about a device which the thieves must be after. Cryll then tangles with the crooks on Jupiter. Despite his efforts the thieves recover the X-box, a device capable of reversing aging. When Space Ranger arrives, the thieves plan to turn him into a baby. Before they can, Space Ranger shows them that the device is flawed. The crooks begin aging rapidly. They surrender and allow Space Ranger to cure them using another device known as the Y-box.