Scott 1453 mint 8c - Yellowstone Park National Parks Centennial, 1972 Commemorative Stamps. representative stamp imaged.
Scott 1453 mint 8c - Yellowstone Park, National Parks Centennial, 1972 Commemorative Stamps. representative stamp imaged.
Scott 1453 mint 8c - Yellowstone Park, National Parks Centennial, 1972 Commemorative Stamps. representative stamp imaged.