Group of six items signed by three notable astronomers and space scientists, including: two ballpoint signatures of Clyde W. Tombaugh on off-white 5 x 3 cards, who adds to both: "Discovered 9th planet, Pluto, on 18 Feb 1930"; an ALS from Tombaugh on a copy of an 8.25 x 11 advertisement for his book Out of the Darkness: The Planet Pluto, dated October 1, 1985; two official glossy 10 x 8 NASA photos of the Jupiter-C rocket, both signed in black ink by James Van Allen; and a semi-glossy 5.5 x 3.5 photo of Bernard Lovell, who signs in black ink with added date of August 25, 1984. In overall fine condition.
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