1980-12-23: Fauna (1980)

1980-12-18: Express stamps

1980-12-11: Paying your taxes means progress

1980-11-18: For the City of Children (1980)

1980-11-11: Christmas 1980

1980-10-22: Paintings

1980-09-24: Agriculture Products

1980-09-11: National Philatelic Exhibition, 8th Ed.

1980-08-14: President Type of 1943

1980-06-25: National Anthem of Costa Rica

1980-05-14: National Parks Service, 10th anniversary

1980-03-10: Summer Olympic Games 1980 - Moscow

1980-03-10: 14th Intl. Symposium on Remote Sensing of the Environment

1980-02-26: Rotary International, 75th Anniversary

1980-02-07: Legal medicine teaching in Costa Rica, 50th anniversary

1980-01-14: Reforestation