• Article 23: The property rights to a copyrighted work shall be protected from the moment of its publication to the 50th year after the death of its author. The property rights to a joint copyrighted work shall be protected from the moment of its publication to the 50th year after the death of the last survivor of the co-authors.
• Article 24: The property rights to a copyrighted work or a copyrighted visual art work whose author is an institution, enterprise or organization shall be protected for up to 50 years from the moment of its publication.

This work, created within the jurisdiction of North Korean Copyright Law (with legal jurisdiction north of the 38th parallel only), has surpassed the durations of either of the above criteria, and thus has expired from its copyright.

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你必須增加美國公有領域標籤顯示為何這個作品在美國屬於公有領域。 請注意這個作品在不適用較短期限法則的國家可能並不屬於公有領域，並有超過作者逝世後50年的著作權期限。其中，墨西哥為100年，牙買加為95年，哥倫比亞為80年，瓜地馬拉與薩摩亞為75年，瑞士和美國為70年，委內瑞拉為60年。