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。 请注意这个作品在不适用较短期限法则的国家可能并不属于公有领域，并有超过作者逝世后50年的著作权期限。其中，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，瑞士和美国为70年，委内瑞拉为60年。

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Note that "photographic works", which must display artistic merit or originality, enter the public domain 70 years after the death of the photographer and that photographs that are not considered works but created 1 January 1970 or later become public domain 50 years after they were created. See Licensing for details.

Some countries have a lower threshold of originality and may therefore apply a longer protection term for this image, so it may not be usable in such countries.

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。
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