This image (or other media file) is in the public domain because its copyright has expired and its author is anonymous.
This applies to the European Union and those countries with a copyright term of 70 years after the work was made available to the public and the author never disclosed their identity.
Important: Always mention where the image comes from, as far as possible, and make sure the author never claimed authorship.

This work was published on territory of the Russian Empire (Russian Republic) except for territories of the Grand Duchy of Finland and Congress Poland before 7 November 1917 and wasn't re-published for 30 days following initial publications on the territory of Soviet Russia or any other countries.

The Russian Federation (early Soviet Russia, RSFSR) is the historical heir but not legal successor of the Russian Empire, and the Russian Empire was not party to the Berne Convention (it was not country of Union for the protection of the rights of authors in their literary and artistic works), so according to article 5 of the Convention this work has no country of origin except:

• in the case of cinematographic work the maker of which has his headquarters or his habitual residence in a country of the Union, the country of origin shall be that country,
• in the case of architecture erected in a country of the Union or other artistic works incorporated in a building or other structure located in a country of the Union, the country of origin shall be that country,
• in the case of other works if the author is a national of a country of the Union¹, the country of origin shall be that country.

¹ - Author who is not a national of a country of the Union but who has his habitual residence in a country of the Union, be assimilated to national of that country.

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