Jonas Edward Salk born Jonas Salk; October 28, 1914 – June 23, 1995) was an American virologist and medical researcher who developed one of the first successful polio vaccines. He was born in New York City and attended the City College of New York and New York University School of Medicine.

In 1947, Salk accepted a professorship at the University of Pittsburgh School of Medicine, where he undertook a project beginning in 1948 to determine the number of different types of poliovirus. Salk devoted himself to developing a vaccine against polio for the next seven years.

Jonas E.Salk signed his 3×4 cut signature in the black felt pen a grade 10 signature

Authentication: JSA Basic Cert & Sticker

Jonas E. Salk Signed Cut