Keywords: Olga Maturana.jpg Olga Maturana mayor of Pichilemu in the 1950s http //3 bp blogspot com/_645Hs4qQdDM/SQvrZhSj6WI/AAAAAAAAFFc/JEZEdhgOuNU/s1600/afiche_protagonistas_web jpg 1953 Diego Grez wikipedia en PD-Chile Chilean intellectual property law first published in October 1970 http //bcn cl/5iki specifies in its 13th article Anonymous or pseudonym work protection lasts for thirty years beginning from its first publication La protección de la obra anónima o seudónima dura treinta años a contar desde la primera publicación Considering this work was created before 1960 its copyright expired at most in 1991 In 1992 when the work was already free of copyright the law was http //www leychile cl/Navegar idNorma 30533 amp;idParte 8287524 amp;idVersion 1992-09-17 ammended Be replaced in the 12th and 13th articles the expression thirty years for fifty years Reemplázase en los artículos 12 y 13 la expresión treinta años por cincuenta años As the work was already in the public domain in its country of origin before 1996 this work is in the public domain in the United States since 1 January of that year Original upload log en wikipedia Diego Grez CommonsHelper en wikipedia Olga+Maturana jpg 2010-08-18 19 12 Diego Grez 74×79× 2281 bytes <nowiki> Black and white picture of Olga Maturana Cropped from http //3 bp blogspot com/_645Hs4qQdDM/SQvrZhSj6WI/AAAAAAAAFFc/JEZEdhgOuNU/s1600/afiche_prot</nowiki> Mayors of Pichilemu |