1991 The 11th Pan-American Games, Havana
1991 The 11th Pan-American Games, Havana
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1991 The 21st General Assembly of Organization of American States, Santiago
1991 The 21st General Assembly of Organization of American States, Santiago
1991 Naval Tradition – The 75th Anniversary of Pardo’s Rescue of Shackleton Expedition
1991 Naval Tradition – The 75th Anniversary of Pardo’s Rescue of Shackleton Expedition
1991 The 100th Anniversary of “Rerum Novarum”, Papal Encyclical on Worker’s Rights
1991 The 100th Anniversary of “Rerum Novarum”, Papal Encyclical on Worker’s Rights
1991 Expoerts – Issues of 1989 Surcharged
1991 Expoerts – Issues of 1989 Surcharged
1991 Easter Island Art – Issues of 1988 Surcharged
1991 Easter Island Art – Issues of 1988 Surcharged