1981 The 20th Anniversary of the Antarctic Treaty
1981 The 20th Anniversary of the Antarctic Treaty
Argentina
1981 International Congress on Medicine and Sciences applied to Sport
1981 International Congress on Medicine and Sciences applied to Sport
1980 The 150th Anniversary of the Death of Simon Bolivar
1980 The 150th Anniversary of the Death of Simon Bolivar
1980 Christmas – The 150th Anniversary of the Appearance of the Holy Virgin to Saint Catherine Laboure, The 350th Anniversary of the Appearance of Holy Virgin at Lujan
1980 Christmas – The 150th Anniversary of the Appearance of the Holy Virgin to Saint Catherine Laboure, The 350th Anniversary of the Appearance of Holy Virgin at Lujan