Both Nobel Prize winners, now deceased. Four items: TLS, signed “Gertrude B. Elion,” one page, 8.5 x 11, August 29, 1995; a glossy 5 x 7 photo of Elion signed in black ink; an 8.5 x 5.5 biographical sheet, signed in black ink by Elion; and a 4 x 3 bookplate signed in blue ballpoint by Rosalyn Yalow. In fine overall condition. RRAuction COA.
