Used First Day Covers

Christmas 1972, Season&#039;s Greetings First Day Cover

Season&#039;s Greetings - Christmas 1972 First Day Cover

125th Anniversary United States Postage Stamps 1847-1972 First Day Cover

125th Anniversary United States Postage Stamps 1847-1972 Block of Stamps First Day Cover

Eugene O&#039;Neill $1.00 Coil Stamp First Day Cover

Love for Someone Special First Day Cover

Love - For Someone Special Block of Stamps First Day Cover

Pamphleteer - Rising Spirit of Independence - American Revolution Bicentennial First Day Cover

American Revolution Centennial Block of Stamps First Day Cover

Honoring George Gershwin, American Composer First Day Cover

Honoring George Gershwin First Day Cover

American Revolution Bicentennial 1973 First Day Cover

Rising Spirit of Independence American Revolution Bicentennial 1973 Block of Stamps First Day Cover

500th Anniversary Birth of Nicolaus Copernicus First Day Cover

500th Anniversary Birth of Nicolaus Copernicus 1473-1973 Plate Block of Stamps First Day Cover

In Memoriam Harry S. Truman First Day Cover

American Revolution Bicentennial 1973 First Day Cover

American Revolution BIcentennial 1973 Block of Stamps First Day Cover

Honoring Amadeo Peter Giannini, 1870-1949 First Day Cover

Progress in Electronics Block of Stamps First Day Cover

Progress in Electronics Series of 1973 Block of Stamps First Day Cover

Progress in Electronics Series of 1973 First Day Cover

Progress in Electronics, Series of 1973 Block of Stamps First Day Cover

Progress in Electronics Block of Stamps First Day Cover