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1991 The 56th Anniversary of the Ending of Chaco War and the Beginning of Construction of “Heroes of Chaco” Road
1991 The 56th Anniversary of the Ending of Chaco War and the Beginning of Construction of “Heroes of Chaco” Road
1991 “Espamer ’91” Spain-Latin America Stamp Exhibition, Buenos Aires
1991 “Espamer ’91” Spain-Latin America Stamp Exhibition, Buenos Aires
1991 The 50th Anniversary of the Bolivian Radio Club
1991 The 50th Anniversary of the Bolivian Radio Club
1990 Winter Olympic Games – Albertville, France
1990 Winter Olympic Games – Albertville, France
1990 Winter Olympic Games – Albertville, France
1990 Winter Olympic Games – Albertville, France
1990 Visit of President Carlos Salinas de Gortari of Mexico
1990 Visit of President Carlos Salinas de Gortari of Mexico
1990 “Exfivia 90” National Stamp Exhibition
1990 “Exfivia 90” National Stamp Exhibition