1997 32c Stagecoach and Ship
1997 32c US Department of the Air Force
1993 29c Great Americans: Thomas Jefferson
1990 40c Great Americans: Claire Chennault
1994 20c Great Americans: Virginia Apgar
1992 75c Great Americans: Wendell Willkie
1990 25c Grand Canyon
1993 29c National Postal Museum
1995 46c Great Americans: Ruth Benedict
1995 32c Richard Nixon
1998 32c "Remember the Maine"
1999 33c All Aboard!
1990 5c Great Americans: Luis Munoz Marin
1992 29c Great Americans: Earl Warren
1991 35c Great Americans: Dennis Chavez
1991 52c Great Americans: Hubert H. Humphrey
1991 29c Contemporary Christmas: Santa in Chimney
1992 29c Space Accomplishments
1993 29c Cherokee Strip Land Run
1993 29c Columbus' Landing in Puerto Rico
1995 32c Great Americans: Milton S. Hershey
1996 32c Great Americans: Cal Farley
1998 32c Great Americans: Henry R. Luce
1998 32c Great Americans: Lila and DeWitt Wallace