File:Jerzy Kowalski esperantisto.jpg

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DescriptionJerzy Kowalski esperantisto.jpg	Esperanto: Krakova esperantisto kaj biologo Jerzy Kowalski
Date	before 1971
Source	Pola Esperantisto : esperantaj sciigoj por pollingvanoj. 1970, 1
Author	Unknown authorUnknown author

This photograph is in the public domain because according to the Art. 3 of copyright law of March 29, 1926 of the Republic of Poland and Art. 2 of copyright law of July 10, 1952 of the People's Republic of Poland, all photographs by Polish photographers (or published for the first time in Poland or simultaneously in Poland and abroad) published without a clear copyright notice before the law was changed on May 23, 1994 are assumed to be in the public domain in Poland.

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 (Poland) on the URAA date (1 January 1996).

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	07:34, 6 September 2022		1,400 × 2,307 (395 KB)	Wierzbowski (talk \| contribs)	Uploaded a work by {{unknown\|author}} from [https://dlibra.kul.pl/dlibra/publication/53968/edition/46184/content Pola Esperantisto : esperantaj sciigoj por pollingvanoj. 1970, 1] with UploadWizard

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