Nobel Prize co-winner for the discovery of DNA. Signed book: The Double Helix. NY: Atheneum, 1968. Hardcover with dustjacket, 5.25 x 8.5, 237 pages. Signed in black ballpoint on the title page. Signed copies of the book in which Watson chronicles the discovery of DNA are not common. In fine condition, with light toning and edge wear to jacket. R&R COA.