South America

1991 Anniversaries

1991 Christmas, Stained Glass Windows from Church of Our Lady of Lourdes, Santos Lugares, Buenos Aires

1991 America, Voyages of Discovery

1991 The 400th Anniversary of the La Rioja City

1991 The 75th Anniversary of the Crossing of Andes by Balloon

1991 Comic Strips

1991 The 700th Anniversary of the Swiss Confederation

1991 Spain-Latin America Stamp Exhibition “ESPAMER 91” – Buenos Aires. Olympic Games, Barcelona ’92, Spain

1991 Return of Remains of the Brigadier General Juan Manuel de Rosas

1991 Espamer 91 Spain-Latin America Stamp Exhibition, Buenos Aires, Racing Drivers