1999 33c Celebrate the Century - 1970s: "Pioneer 10"

1999 33c Celebrate the Century - 1970s: U.S. Bicentennial

1999 33c Celebrate the Century - 1970s: America Smiles

1999 33c Celebrate the Century - 1970s: Secretariat Wind Triple Crown

1999 33c Celebrate the Century - 1960s: The Vietnam War

1999 33c Celebrate the Century - 1970s: Medical Imaging

1999 33c Celebrate the Century - 1970s: Pittsburgh Steelers Win Four Superbowls

1999 33c Celebrate the Century - 1960s: Star Trek

1999 33c Celebrate the Century - 1970s: 1970s Fashion

1999 33c Celebrate the Century - 1970s: VCRs

1999 33c Celebrate the Century - 1960s: Ford Mustang

1999 33c Celebrate the Century - 1970s: Sesame Street

1999 33c Celebrate the Century - 1970s: TV Series "All in the Family"

1999 33c Celebrate the Century - 1960s: Roger Maris Breaks 61 in '61

1999 33c Celebrate the Century - 1970s: Women's Rights Movement

1999 33c Celebrate the Century - 1970s: Disco

1999 33c Celebrate the Century - 1960s: Super Bowl I

1999 33c Celebrate the Century - 1960s: Green Bay Packers

1999 33c Celebrate the Century - 1970s: Earth Day

1999 33c Celebrate the Century - 1960s: Barbie Doll