FDC with a cachet honoring the Mariner 10 space probe that flew by Venus and Mercury, signed in blue ballpoint, "Clyde W. Tombaugh, Discovered 9th planet Pluto, on 18 Feb 1930, at the age of 24 years." In fine condition. Encapsulated in a PSA/DNA authentication holder.
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.
