File:广西梧州蝴蝶山的广西大学校门.jpg

• it was simultaneously published (within 30 days) in the U.S. and in its source country and is in the public domain in the U.S. as a U.S. work (no copyright registered, or not renewed),

or

• it was first published outside the United States (and not published in the U.S. within 30 days) and
• it was first published before 1978 without complying with U.S. copyright formalities or after 1978 without copyright notice and
• it was in the public domain in its home country on the URAA date ( January 1, 1996 for most countries).

This work may still be copyrighted in other countries.

For background information, see the explanations on Non-U.S. copyrights. Note: in addition to this statement, there must be a statement on this page explaining why the work is in the public domain in the U.S. (for the first case) or why it was PD on the URAA date in its source country (second case). Additionally, there must be verifiable information about previous publications of the work.

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。