The stamps vary in quality, including original gum, no gum, used, hinge remaining, lightly hinged, and heavily hinged. They come in green color and are ungraded, although they are certifiable. The stamps were issued between 1921 and 1960 in the United States and are a great addition to any collection. They are on paper and off paper, and are perfect for collectors who enjoy historical figures and topics. This collection does not include any rare or valuable stamps, but it is a great addition to any antique collection.