1976 Christmas 1977 Local Motifs WM: 13 1977 General Jose de San Martin 1977 General Manuel Belgrano 1977 United Nations Water Conference 1977 The 100th Anniversary of the Death of Dr. D. Velez Sarsfield, 1975 1977 Plastic Arts 1977 Football World Cup – Argentina 1977 Buildings 1977 Argentine Philately 1977 Army Day 1977 Navy Day 1977 The 150th Anniversary of the Uruguay Post Office 1977 Admiral Guillermo Brown 1977 “Argentina ’77” Exhibition 1977 The 100th Anniversary of the Birth of Admiral Guillermo Brown 1977 Provinces of Argentina 1977 General Jose de San Martin 1977 Air Force Day & 1926 Buenos Aires-New York Flight Commemoration 1977 The 50th Anniversary of the Military Aviation Factory 1977 Buildings 1977 Christmas 1978 Football World Cup – Argentina 1978 Football World Cup – Argentina 1978 Buildings 1978 General Jose de San Martin 1978 Football World Cup – Argentina – Match Sites 1978 The 50th Anniversary of the Inter-American Children’s Institute 1978 Argentine Art 1978 -1979 Buildings WM: 13