File:Božo Petrović-Njegoš, The Graphic.png

This UK artistic or literary work, of which the author is unknown and cannot be ascertained by reasonable enquiry, is in the public domain because it is one of the following:

• A photograph, which has never previously been made available to the public (e.g. by publication or display at an exhibition) and which was taken more than 70 years ago (before 1 January 1954); or

• A photograph, which was made available to the public (e.g. by publication or display at an exhibition) more than 70 years ago (before 1 January 1954); or

• An artistic work other than a photograph (e.g. a painting), or a literary work, which was made available to the public (e.g. by publication or display at an exhibition) more than 70 years ago (before 1 January 1954).

This tag can be used only when the author cannot be ascertained by reasonable enquiry. If you wish to rely on it, please specify in the image description the research you have carried out to find who the author was. The above is all subject to any overriding publication right which may exist. In practice, publication right will often override the first of the bullet points listed.

Unpublished anonymous paintings remain in copyright until at least 1 January 2040. This tag does not apply to engravings or musical works. More information

This Montenegrin work is in the public domain because its copyright expired pursuant to the Yugoslav Copyright Act of 1978 which provided for copyright term of the life of the author plus 50 years, respectively 25 years for photograph or a work of applied art (details). This applies to works already in the public domain on or before December 29, 2004 when a new copyright act became valid.

The work meets one of the following criteria:

a) a work of known authorship and the author died before January 1, 1954

b) an anonymous work and it was published before January 1, 1954

c) a photograph or a work of applied art published before January 1, 1973

Note that other works enter the public domain 70 years after the author's death or 70 years after publication if the work was published anonymously. If this is the case please use {{PD-old-70}}.