Barbara McClintock, Genetics, Nobel Prize Winner, First Day of Issue, FDC USA

The Only United States Commemorative Postage Stamp Issued Honoring the First Woman to Win an Unshared Nobel Prize, Dr. Barbara McClintock,

Winner of Nobel Prize in Physiology and Medicine, 1983,

Discovered that Genes Could Transpose Within Chromosomes by Investigating Maize (Corn) Genetics Through Careful Hybridization,

Issued May 4, 2005, New Haven, Connecticut,

First Day of Issue Cover, FDC, BGC 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,