South America

1977 “Argentina ’77” Exhibition

1977 Admiral Guillermo Brown

1977 The 150th Anniversary of the Uruguay Post Office

1977 Navy Day

1977 Army Day

1977 Argentine Philately

1977 Buildings

1977 Football World Cup – Argentina

1977 Plastic Arts

1977 The 100th Anniversary of the Death of Dr. D. Velez Sarsfield, 1975