1979 The 3rd Anniversary of the World Telecommunications Exhibition “Telecom 79” – Geneva
1979 The 3rd Anniversary of the World Telecommunications Exhibition “Telecom 79” – Geneva
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1979 International Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil – The First International Exhibition of Classical Philately – Fountains
1979 International Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil – The First International Exhibition of Classical Philately – Fountains
1979 Third World Thematic Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil – Paintings by Leandro Joaquim
1979 Third World Thematic Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil – Paintings by Leandro Joaquim
1979 The 18th Anniversary of the UPU Congress, Rio de Janeiro
1979 The 18th Anniversary of the UPU Congress, Rio de Janeiro
1979 The 75th Anniversary of the Coronation of Our Lady Aparecida
1979 The 75th Anniversary of the Coronation of Our Lady Aparecida
1979 The 10th Anniversary of the Brazilian Aeronautical Industry
1979 The 10th Anniversary of the Brazilian Aeronautical Industry
1979 International Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil – Butterflies
1979 International Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil – Butterflies
1979 International Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil
1979 International Stamp Exhibition “Brasiliana 79” – Rio de Janeiro, Brazil