White First Day Covers

1565 - 1965 Quadricentennial of St. Augustine Florida First Day Cover

Promote Traffic Safety First Day Cover

John Singleton Copley First Day Cover

Centenary of the International Telecommunication Union 1965 First Day Cover

In Memoriam Adlai Stevenson First Day Cover

Season&#039;s Greeting Christmas 1965 First Day Cover

50th Anniversary Migratory Bird Treaty United States-Canada 1966 First Day Cover

Humane Treatment of Animals First Day Cover

150th Anniversary Indiana Statehood First Day Cover

Salute to the American Circus First Day Cover

American Circus First Day Cover

Circus World Museum Baraboo Wisconsin First Day Cover

SIPEX 1966 First Day Cover

175th Anniversary of the Bill of Rights 1791-1966 First Day Cover

1000 Years of Polish Culture First Day Cover

50th Anniversary National Park Service First Day Cover

U.S. Marine Corps Reserve 50th Anniversary First Day Cover

US Marine Corps Reserve First Day Cover

General Federation of Women&#039;s Club First Day Cover

Johnny Appleseed First Day Cover

Beautification of America First Day Cover

Great River Road, Pines to Palms First Day Cover

25 Years of United States Savings Bonds First Day Cover

Christmas 1966 First Day Cover