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1958 The 400th Anniversary of Osorno

1958 Gabriela Mistral, Poetess, Nobel Prize Winner, 1889-1957

1957 -1960 Airmail – Not Watermarked

1956 The 25th Anniversary of Santa Maria Technical University, Valparaiso

1956 Personalities

1956 Airmail – Aircraft without Watermark

1956 Airmail – Aircraft WM: 8

1956 Personalities WM: 8

1956 Personalities WM: 8

1955 -1956 The 100th Anniversary of the Death of Jose Joaquin Prieto, President, 1786-1854