This signature is believed to be ineligible for copyright and therefore in the public domain because it falls below the required level of originality for copyright protection both in the United States and in the source country (if different). In this case, the source country (e.g. the country of nationality of the signatory) is believed to be Romania.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.
According to the Romanian Law on Copyright and Neighboring Rights Law no. 8/1996 of March 14, 1996 with further amendmentsChapter 3 Article 9 the following documents shall not benefit from the legal protection accorded to copyright:
(a) the ideas, theories, concepts, scientific discoveries, procedures, working methods, or mathematical concepts as such and inventions, contained in a work, whatever the manner of the adoption, writing, explanation or expression thereof;
(b) official texts of a political, legislative, administrative or judicial nature, and official translations thereof;
(c) official symbols of the State, public authorities and organizations, such as armorial bearings, seals, flags, emblems, shields, badges and medals;
(d) means of payment;
(e) news and press information;
(f) simple facts and data.
Also, according to Chapter 10 Article 85 Paragraph 2,
The photographs of letters, deeds, documents of any kind, technical drawings and other similar papers shall not benefit from the legal protection accorded to copyright.
Therefore this image is assumed to be in the public domain worldwide, although some of the above categories may be subject to usage restrictions within Romania.