This lot is closed for bidding. Bidding ended on 6/1/2017
One of the most important medical researchers of the 20th century, Jonas Salk is best known for his development of the first successful polio vaccine. Offered here is a 7.25" x 8.75" black & white photo of Salk at work, signed by the scientist in black felt tip along the bottom edge. In overall fine condition. Accompanied by a full Letter of Authenticity from Beckett Authentication Services (BAS).