Croatian chemist and 1975 Nobel Prize winner in chemistry. TLS signed “V. Prelog,” one page, 8.25 x 12, Laboratorium fur Organische Chemie letterhead, April 12, 1990. Letter to an admirer. In part: “I was awarded the Prize ‘ for the work on the stereochemistry of organic molecules and reactions’ and not for a single discovery. My interest in stereochemistry developed gradually during our investigations of the structure of natural compounds.” In fine condition. RRAuction COA.