50th Anniversary National Park Service

"Old Faithful" YELLOWSTONE NATIONAL PARK WYOMING Ant Craft NATIONAL PARK SERVICE Department FIRST DAY OF ISSUE NATIONAL 25 1966 83020 SERVICE THE NATIONAL PARK SYSTEM IS DEDICATED TO CONSERVING THE SCENIC, SCIENTIFIC, AND HISTORIC HERITAGE OF THE U.S. FOR THE BENEFIT AND ENJOYMENT OF ITS PEOPLE YELLOWSTONE PARK.WY 50 ÄNNIVERSARY NATIONAL PARK Judson & Lindsey 431471. Nelson Dr. Peoria Ill 1XXXX National Park Service 1916-1966 5⁰ FIRST DAY OF ISSUE