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.

Information: Passport page is maintained in the Archives of the Polish Institute and General Sikorski Museum in London, Archives Ref. No A.XII. 4/172.[1] Gralewski died on 4 July 1943[2] so the passport was created on or before 1943. The documents forming the collection at the Sikorski Museum went on public display in 1945.[3] Copyright law of March 29, 1926 provided copyright protection for ten years after a photograph was taken.File:Prawo_autorskie_1935.pdf This was retroactively extended to 50 years with the amendment to Article 124 of the Polish Copyright Law of February 4, 1994,[4] meaning that copyright in Poland expired in 1993 (1943 + 50 =1993) For the URAA date, the photograph was effectively presented to the public, i.e. published, in 1945 and expired in 1995, before 1 January 1996 effective date.