Signed book: The Double Helix. Later printing. NY: Atheneum, 1968. Hardcover (missing dustjacket), 5.5 x 8.5, 226 pages. Signed in black ballpoint in Watson’s diminutive script on the title page. Separated first free-end page, paper loss to the inside cover, handwritten notations from a prior owner on the front and back end pages on a talk given by Watson (along with a snapshot of Watson at that talk), and heavy sunning to the spine and cover edges, otherwise very good condition. RRAuction COA.