This work is now in the public domain in Iran, because according to the Law for the Protection of Authors, Composers and Artists Rights (1970) its term of copyright has expired for one of the following reasons:

• The creator(s) died before 22 August 1980, for works that their copyright expired before 22 August 2010 according to the 1970 law.
• The creator(s) died more than 50 years ago. (Reformation of article 12 - 22 August 2010)

In the following cases works fall into the public domain after 30 years from the date of publication or public presentation (Article 16):

• Photographic or cinematographic works.
• In cases where the work belongs to a legal person or rights are transferred to a legal person.

The media description page should identify which reason applies.

For more information please see: Commons:Copyright rules by territory/Iran.

This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.