United-States
1999 Birds – American Kestrel – Self-Adhesive
1999 Birds – American Kestrel – Self-Adhesive
1999 Celebrate the Century, 1970s – Bicentennial, Watergate, and Earth Day
1999 Celebrate the Century, 1970s – Bicentennial, Watergate, and Earth Day
1999 Celebrate the Century, 1950s – Family Fun, Suburbia, and Nuclear Threats
1999 Celebrate the Century, 1950s – Family Fun, Suburbia, and Nuclear Threats
1999 John & William Bartram – Self-Adhesive
1999 John & William Bartram – Self-Adhesive
1999 Fruits – Self-Adhesive Coil Stamps
1999 Fruits – Self-Adhesive Coil Stamps