The copyright situation of this work is theoretically uncertain, because in the country of origin copyright lasts 50 years after the death of the author, and the date of the author's death is unknown. However, the date of creation of the work was over 100 years ago, and it is thus a reasonable assumption that the copyright has expired (see here for the community discussion). Do not use this template if the date of death of the author is known.

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Toto dílo je ve Spojených státech amerických dílem volným (public domain), protože tam bylo registrováno u U.S. Copyright Office nebo zveřejněno před 1. lednem 1929.

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 Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.