This unique collection features the beautiful birds and flowers of the fifty states of the United States. Each cover represents a special piece of American culture and history. The stamps are ungraded and the cancellation type is First Day of Issue. The collection includes a 20 cent denomination and features multi-color designs. The certification is uncertified, but the quality of the stamps is used. This collection is a beautiful addition to any stamp collection and is perfect for those interested in American history and culture.