Scientists Gerti Cori, Linus Pauling, Edwin Hubble, John Bardeen, First Issue USA

United States Commemorative Postage Stamps, American Scientists,

Gerti Cori was the first female to earn a Nobel Prize for Physiology/Medicine
Chemist Linus Pauling received two Nobel Prizes.
Astronomer Edwin Hubble discovered galaxies beyond the Milky Way.
John Bardee developed the transistor, received two Nobel Prizes.

Issued March 6, 2008, New York, NY,

First Day of Issue Cover, FDC, ArtCraft Engraving Cachet, Unaddressed, Ideal for Framing,

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,