Lot #6280
Clyde W. Tombaugh Signed FDC

This lot has closed

Estimate: $200+


FDC with a cachet honoring the 500th birthday of Polish astronomer Nicolaus Copernicus, postmarked on April 23, 1973, signed in blue ballpoint, "Clyde W. Tombaugh, Discovered 9th planet, Pluto, on 18 Feb 1930." In very fine condition. Encapsulated in a PSA/DNA authentication holder.

Auction Info

  • Auction Title: PSA Encapsulated Autograph Auction
  • Dates: #652 - Ended September 22, 2022