I definitely believe the author is anonymous. It was created during de first days of the Spanish Civil War, by various artists members of the trade union CNT (art and drama area) or FIJL, and were posted in every city they could. The federation was very new and there is fairly no archives, information or media about it.
Això és una mera fotografia d'una obra d'art bidimensional en domini públic. L'obra d'art original és en domini públic pel següent motiu:
Public domainPublic domainfalsefalse
This image is in the public domain in Spain where the copyright term for anonymous or pseudonymous works is 80 years from the year of first publication or less.
Please give also an explanation why the work is in the public domain in the United States. If this work was published after 1929 and it was not in the public domain in Spain on the URAA date (January 1, 1996), use {{Not-PD-US-URAA}} in addition to this template. For files in the public domain in the European Union, please use {{PD-anon-70-EU}}.
La posició oficial de la Fundació Wikimedia és que «les reproduccions fidels d'obres d'art bidimensionals de domini públic són en domini públic». Per tant, aquesta reproducció fotogràfica també es considera en domini públic als Estats Units. En altres jurisdiccions la reutilització d'aquest contingut pot estar restringida; vegeu Reuse of PD-Art photographs per a més informació.
This work may not be in the public domainin the United States because its U.S. copyright was restored by the URAA as it was still copyrighted in its source country (Espanya) on the URAA date (1r de gener de 1996). In most cases, it is copyrighted in the U.S. until 95 years after the year in which it was initially published (exceptions are works published after 1977; see Commons:Hirtle chart).This template may not be used for files uploaded after 1 March 2012.
If you are the copyright holder of this file, and do not wish to have it hosted on Commons, please contact our designated agent or nominate the file for deletion, explaining the situation.
Aquest fitxer conté informació addicional, probablement afegida per la càmera digital o l'escàner utilitzat per a crear-lo o digitalitzar-lo. Si s'ha modificat posteriorment, alguns detalls poden no reflectir les dades reals del fitxer modificat.