NASA data sheet entitled Explorer-I and Jupiter-C, 6.25 x 9, one page both sides, signed in black felt tip by James Van Allen (signed “J. A. Van Allen”). In fine condition. Pre-certified Scott Cornish and RR Auction COA.
We use cookies on this site to improve your experience. By using this site, you accept our use of cookies. To learn more, please see our Privacy Policy.
