According to the Law 13714 (1961), under the administration of the Manuel Prado government, and article 4.3 of the Universal Copyright Convention this photograph entered the public domain in Peru before 1996 because it was taken and performed from negative to paper or similar before 31 December 1975 and was protected for 20 years from its first copy disclosed as of January 1 of the following year.
In the case of copies disclosed for first time since 1976 by other person, D.L. 822 (1996) establishes that the shots made before 31 December 1953 automatically enter the public domain, 70 years after their creation from January 1 of the following year. For more information see the Peru copyright page.
It is understood that simple photograph is when the author did not include exclusively for his/her literary or scientific work. Not apply for reproduction of copyrighted artistic work "of private domain" or documentary work . If the photo is assigned by a publisher, also photojournism, the exclusive rights of circulation by this one are for 5 years without extending the duration. Indicate the name of the author or owner of the photo is necessary with the date of publication. Warining: D.L. 822 says that some works "enjoying the longest terms of protection recognized by this Law" but denies retroactivity for expired works. A template is necessary explaining why they are in the public domain in the United States.
Exceptions: those published for first time between 1976 and 1996 protection may vary, except those were not renewed in this year and URAA date of 1996 if: the owner was never known or did not carry the "prohibition of reproduction" tag for material published before 1981 (use {{PD-Peru-anonymous}} if required), unpublished media created before 1926 or material from an author who died before 1931 (use {{PD-Peru-1961law}} if required).
This work is in the public domain both in Brazil and in the United States because it was first published in Brazil (and not published in the U.S. within 30 days) and if it was copyrightable, it was first published before 1 March 1989 without complying with U.S. copyright formalities, such as copyright notice and it is one of the following:
A work whose author died before 1936;
An anonymous work or a work deemed to be anonymous, or a work by a collective person whose authors were not individually identified, published or disclosed before 1936;
Photographic works not considered to be "artistic creations" produced before 20 June 1998. (Includes documentary photography in general (commercial or not), as well as non-artistic photographic portraits. See here for some guidance on this);
Cinematographic, phonographic, photographic and applied arts works completed before 1936.
For background information, see the explanations on Non-U.S. copyrights.
As of 1 January 1996, were in the public domain in Brazil: Works whose author died before 1936; anonymous works, works deemed to be anonymous, or works by a collective person whose authors were not individually identified, first published or disclosed before 1936; all photographic works, and works deemed to be photographic works, which by choice of object and execution conditions couldn't be considered an artistic creation; work published or commissioned by a Brazilian government (federal, state, or municipal) prior to 1983; cinematographic, phonographic, photographic and applied arts works completed before 1936. Non artistic photographs continued entering the public domain until 20 June 1998 (not included), when Law 9.610 came into effect, 120 days after publication (pub. 20 Feb 1998).
{{Information |Description= Firma del Protocolo de Río de Janeiro (1942) |Source= Archivo El Comercio |Date= 1942 |Author= Reproducción fotográfica |Permission= |other_versions= }}