The BIRDS/FLOWERS 50 STATES FIRST DAY COVER COLLECTION by Postal Commemorative Society is a colorful and patriotic stamp collection featuring birds and flowers from all 50 states in the United States. Each cover is marked with a First Day of Issue cancellation, adding to its uniqueness and value. This collection is perfect for stamp enthusiasts and collectors looking to celebrate the beauty and diversity of the United States through its avian and floral imagery.