The composition of coats of arms are generally public domain with respect to copyright laws, and may be reproduced freely.
This corresponds to the international traditional usage, and is explicitly stated in some national copyright laws. Some compositions, of more recent origin, may be copyrighted.
This is not a valid license as such, being a "public domain" statement for the coat of arms definition only. It must be completed with the copyright tag associated to the picture creation.
Please note that this applies only to the coat of arms definition (composition / description). The representation of a coat of arms is an artistic creation, subject as such to copyright laws.
Restriction of use - Legal notice: Most of the time, the usage of coats of arms is governed by legal restrictions, independent of the status of the depiction shown here. A coat of arms represents its owner. Though it can be freely represented, it cannot be appropriated, or used in such a way as to create a confusion with or a prejudice to its owner.
Usage on Commons: Please provide licence information for the coat of arm representation, information for the author of the picture, and the source if not self-made work.
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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.