The product is a Sc UC63 American Eagle airmail 45c stamp on a colorful ArtCraft cachet First Day of Issue cover from 1991. This United States stamp features a design of an eagle and is used on an aerogramme air letter. The cancellation type indicates that it was issued on the first day of the stamp's release, adding to its collectible value. This FDC would be a colorful and unique addition to any stamp collection focusing on United States covers from the 1971-80 period.