The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
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 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.
The exclusive rights to this work do not extend on territory of the Russian Federation according to article 1256 of the Civil Code of the Russian Federation (details), because this work does not meet the requirements on the territory of publication, on the author's nationality, and on obligations for international treaties.
