File:鸦片战争史画.pdf

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:

Public domainPublic domainfalsefalse

	This work is in the public domain in the United States because it meets three requirements: it was first published outside the United States (and not published in the U.S. within 30 days), it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States, it was in the public domain in its home country (China) on the URAA date (1 January 1996). It is also in the public domain in other countries and areas where the copyright terms of anonymous or pseudonymous works are 80 years or less since publication.
	For background information, see the explanations on Non-U.S. copyrights. Note: in addition to this statement, there must be a statement on this page explaining why the work was PD on the URAA date in its source country (second case). Additionally, there must be verifiable information about previous publications of the work.
বাংলা ∙ Deutsch ∙ English ∙ 日本語 ∙ македонски ∙ polski ∙ Tiếng Việt ∙ 中文（简体） ∙ 中文（繁體） ∙ 中文（臺灣） ∙ +/−

---

This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.

---

Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.