The author of this image from Switzerland is unknown, and the image was published at least 70 years ago. It is therefore in the public domain in Switzerland by virtue of Art. 31 of the Swiss Copyright Act.
Note that this applies only if a reliable source is cited to indicate that the author is not publicly known; just not knowing who the author is is not enough to qualify the image as public domain. This image may not be in the public domain in countries other than Switzerland.
It is an anonymous work or pseudonymous work and 50 years have passed since the date of its publication (or creation, whatever date is the latest)
It is a collective or audiovisual work and 50 years have passed since the date of its publication (or creation, whatever date is the latest)
It is another kind of work, and 50 years have passed since the year of death of the author (or last-surviving author)
It is one of "laws, legislative decrees, decrees and decisions issued by all public authorities and official translations thereof"
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.
This image is in the public domain in countries and areas where the copyright term for anonymous or pseudonymous works is 70 years from the year of first publication or less, for example in the European Union.
Please give also an explanation why the work is in the public domain in its source country and in the United States. If this work was published after 1928 and it was not in the public domain in its source country on the URAA date (January 1, 1996 for most countries), use {{Not-PD-US-URAA}} in addition to this template.
For files in the public domain in the EU, please use {{PD-anon-70-EU}} (see the documentation).
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Station_de_Mallakah-Zahleh_(Beyrouth-Damas).jpeg