South America

1981 The 50th Anniversary of the First Airmail Between Bolivia & Brazil

1981 The 10th Anniversary of the Bolivian Philatelic Federation

1981 The 10th Anniversary of the Bolivian Philatelic Federation

1981 The 150th Anniversary of the Death of Gran Mariscal de Ayacucho

1981 The 150th Anniversary of the Death of Simon Bolivar

1980 Aviation Anniversaries – Moonlanding,Lufthansa & Zeppelin

1980 Aviation Anniversaries – Moonlanding,Lufthansa & Zeppelin

1980 Winter Olympic games – Lake Placid, USA

1980 Winter Olympic games – Lake Placid, USA

1980 Olympic Games – Moscow, USSR