Used First Day Covers

Emergency Change of Rate Postage &#039;A&#039; Stamp Block of Stamps First Day Cover

Emergency Change of Rate Postage &#039;A&#039; Stamp Block of Stamps First Day Cover

Understanding Through Photography The Universal Language First Day Cover

Understanding Through Photography - The Universal Language Block of Stamps First Day Cover

15¢ Oliver Wendell Holmes 1841-1935 First Day Cover

15¢ Oliver Wendell Holmes 1841-1935 - Prominent Americans Series Block of Stamps First Day Cover

The Land of the Free - The Home of the Brave 15¢ Postage Stamp 1978 First Day Cover

The Land of the Free - The Home of the Brave, 15c Postage Stamp-1978 Block of Stamps First Day Cover

The Land of the Free - The Home of the Brave 15¢ Postage Stamp 1978 First Day Cover

The Land of the Free - The Home of the Brave Block of Stamps First Day Cover

George M. Cohan - 100th Anniversary of His Birth 1878-1978 First Day Cover

American Roses Block of Stamps First Day Cover

Commemorating Viking Space Missions - United States Unmanned Space Accomplishments First Day Cover

Commemorating Viking Space Missions - United States Unmanned Space Accomplishments Block of Stamps First Day Cover

Remote Outpost New Nation Building Westward First Day Cover

28 Cent Postage Stamp - 1978 Block of Stamps First Day Cover

American Owls Symbols of Wisdom First Day Cover

Season&#039;s Greetings Christmas 1978 First Day Cover

Season&#039;s Greetings - Christmas 1978 Block of Stamps First Day Cover

Season&#039;s Greetings, Christmas 1978 First Day Cover

Christmas 1978 Block of Stamps First Day Cover

American&#039;s Light will Shine Over all the Land First Day Cover

America&#039;s Light will Shine Over all the Land Block of Stamps First Day Cover

1979 International Year of the Child First Day Cover