Carl Sagan Scientist Authentic Signed 5.5x8.5 Letter Dated 12/6/1995 BAS Slabbed

This Autographed Dated December 6th, 1995 on Cornell University Letterhead 5.5x8.5 Letter has been Personally Signed by Carl Sagan. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.