This image (or other media file) is in the public domain because its copyright has expired and its author is anonymous. This applies to the European Union and those countries with a copyright term of 70 years after the work was made available to the public and the author never disclosed their identity. Important: Always mention where the image comes from, as far as possible, and make sure the author never claimed authorship. Note: In Germany and possibly other countries, certain anonymous works published before July 1, 1995 are copyrighted until 70 years after the death of the author. See Übergangsrecht. Please use this template only if the author never claimed authorship or their authorship never became public in any other way. If the work is anonymous or pseudonymous (e.g., published only under a corporate or organization's name), use this template for images published more than 70 years ago. For a work made available to the public in the United Kingdom, please use Template:PD-UK-unknown instead.

This work is in the public domain in the United States because it meets three requirements: it was first published outside the United States (and not published in the U.S. within 30 days), it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States, it was in the public domain in its home country on the URAA date (January 1, 1996 for most countries). For background information, see the explanations on Non-U.S. copyrights. Note: This tag should not be used for sound recordings.

URAA rationale: Work was published in 1925. At the time the photograph was taken Czeckoslovakia did not have a copyright law, as when the country developed in 1918, it "preserved the Austrian legal system", not developing a separate copyright law until 1926.[1] (The Austro-Hungarian Empire copyright expired 50 years from creation). In 1926 Act #218/1926 was passed and (§ 39) provided that anonymous/pseudonymous works were protected for 50 years after publication.[2] Copyright law was revised (Act No. 115/1953) in 1953 and repealed all provisions of the 1926 law (§ 112); confirming copyright of fifty years (§ 68) for anonymous works, but granting protected author's rights to the first publisher of an anonymous/pseudonymous work (§ 11).[3] These same provisions (§ 8 author's rights to first publisher; § 33 term of 50 years) were extended by a revision (Act No. 35/1965) which was enacted in 1965 and did not expire until 2000.[4] Thus at the time of the URAA effective date of 1 January 1996, the term of protection was 50 years from publication and had expired in 1975 (1925+50).