United States Postage Stamp Honoring Dr. George Papanikolaou, Developer of the Pap Test for Early Cancer Dectection,
Issued May 18, 1978, Washington, DC,
First Day of Issue Cover, FDC, Fleetwood Cachet, Unaddressed,
Cover in Removable Transparent Poly Sleeve and Mailed With Protection,
Made in the USA
