Issued in 1947, this 3-cent green stamp celebrates the establishment of Everglades National Park, one of America’s most unique ecosystems. The design features a graceful Great White Heron set against a map of Florida, highlighting the park’s southern location. This commemorative issue belongs to the National Parks series, emphasizing wildlife preservation and natural beauty. The clean engraving and balanced composition make it a classic mid-20th-century U.S. commemorative admired by collectors for both its design and environmental theme.