• The photographic, artistic, scientific or literary work did not bear the real name of the natural or legal person, and
• This work was not credited or nor registered its name in the National Copyright Registry 15 years after its publication.

However, the work was not renewed on the URAA date (January 1, 1996) and is not protected in the United States. More info in COM:Peru. It is necessary to verify if the publication was not registered or lacks information about the authors during the 15 years of publication.
Warning: The Peruvian copyright law of 23 April 1996 repealed law 13714, in its transitory provisions it indicates that only "[the works still] protected in accordance with the previous law, will enjoy the most extensive terms of protection recognized in this Law" and denies retroactive effect.
Note: Note: The cases of anonymous photography and amateur video are "media not appropriate to their nature" and therefore are not protected by law as authors in the Andean Community. But, scripts, scores and other artistic interpretations could be separately protected by natural or legal entity.

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本作品在其来源国以及其他著作权期限是作者逝世后70年或以下的国家和地区属于公有领域。

你必须增加美国公有领域标签显示为何这个作品在美国属于公有领域。 请注意少数国家的版权保护期为70年以上：墨西哥为100年，牙买加为95年，哥伦比亚为80年，危地马拉与萨摩亚为75年，而这些国家不实施较短期限法则，因此该图片可能在这些国家不被认为是公有领域。洪都拉斯的版权期限一般为75年，但该国实施较短期限法则。对于在第二次世界大战期间为法国利益战死的法国人（更多信息）、二战期间参与过苏德战争（俄罗斯称之为伟大的卫国战争）的俄罗斯人，以及苏联时期遭到镇压，而死后获得平反的牺牲者（更多信息），这些人的作品版权期限会有所延长。