This is a 13 cent stamp from the United States issued in 1978. The stamp features Dr. George Papanicolaou, the founder of the Pap test, and comes with three First Day Covers. The covers have cachets and are in VF (Very Fine) condition. The stamp is multi-colored and has a medical theme. It is a great addition to any collection for those interested in medical history or stamp collecting. The stamp was cancelled on the First Day of Issue. Don't miss out on this unique piece of history!