Typed speech, 8.5 x 11, 16 pages and 21 pages of figures. Entitled “Vaccination Against Paralytic Poliomyelitis, Performance and Prospects. From Virus Research Laboratory School of Medicine University of Pittsburgh, Presented on 12 April 1955, University of Michigan,” signed at the top right corner of the title page in black felt tip, “Jonas Salk.” In fine condition, with light toning and all of the pages bound to a spiral spine with cover. RRAuction COA.
