The Official Birds and Flowers of Our Fifty States First Day Cover Collection is a unique and wonderful addition to any stamp collection. This collection features beautiful designs of birds and flowers from each of the fifty states, making it a wonderful way to celebrate the natural beauty of the United States. Each first day cover is carefully crafted and features a unique stamp that showcases the beauty of the state's bird and flower. This collection is perfect for stamp collectors and enthusiasts alike, and is sure to be a cherished addition to any collection. The first day cover collection is a great way to commemorate the beauty of the natural world, and the unique designs of each state's bird and flower make this collection a truly special one.