Nobel Prize–winning chemist (1912–1999) who was instrumental in the discovery of several elements. Element 106, Seaborgium, was named in his honor in 1994, the first such distinction ever bestowed upon a living person. Lot of two items: vintage printed copy of a keynote address given by Seaborg titled “The Atom’s Future in Space,” 8 x 10.5, 13 pages, August 23, 1966, signed in black felt tip on the first page, “Glenn T. Seaborg”; and a TLS on Atomic Energy Commisson letterhead, December 21, 1966, transmitting the address. In fine condition, with usual mailing folds, a few bends to letter, staple to address, and a few small rust stains to both. R&R COA.