Ecuador 5 Sucres "SPECIMEN" Overprint, American Bank Note Co.

Ecuador · 1942 · 5s (Sucres)

This high-value airmail stamp features a map of Ecuador, highlighting its provinces and major rivers, with an airplane flying overhead. The stamp was printed by the American Bank Note Company (ABNCo) and is distinguished by a red "SPECIMEN" overprint, indicating it was intended for distribution to postal authorities and not for postage.

Issued during World War II, this stamp was part of a series promoting Ecuador's national identity and airmail services. Specimen stamps like this were sent to members of the Universal Postal Union to prevent forgery.