Dr. Jonas Salk, Developed Polio Virus Vaccine, Medicine 2006 First Issue USA

United States Postage Stamp, Honoring American Biologist and Physician Jonas Salk,

First to Develop a Killed-Virus Polio Vaccine,

Issued March 8, 2006 in Washington, DC,

First Day of Issue Cover, FDC, AALL Cachet, Unaddressed,

Cover in Removable Transparent Poly Sleeve and Mailed With Protection,

Made in the USA


Genuine First Day of Stamp Issued Cover Cancelled on the First Day of Issue Date by the U.S. Postal Service,