English: Signature of Dr. Nguyen Ngoc Bich (1911–1966)
Source
Open public letter from Nguyen Ngoc Bich to Dao Duy Anh in the Han-Viet Tu Dien (Sino-Vietnamese dictionary) by Dao Duy Anh, public domain, screenshot and image treatment by Loc Vu-Quoc, vuquocloc@yahoo.com, User:Egm4313.s12
Author
Nguyen Ngoc Bich
Licensing
Public domainPublic domainfalsefalse
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 France.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.