File:Rejewski&Rozycki&Zygalski.jpg

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Summary

DescriptionRejewski&Rozycki&Zygalski.jpg	Deutsch: Die drei polnischen Kryptoanalytiker Marian Rejewski, Jerzy Różycki und Henryk Zygalski (ca. 1928-1932) English: The three polish codebreakers Marian Rejewski, Jerzy Różycki, and Henryk Zygalski (ca. 1928-1932)
Date	14 November 2013, 22:52:01
Source	File:Enigma_deszyfranci.jpg
Author	Unknown authorUnknown author

Licensing

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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File history

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	Date/Time	Dimensions	User	Comment
current	08:31, 25 February 2016	500 × 211 (49 KB)	OS	slightly adjusted brightness and contrast
	05:30, 24 February 2016	500 × 211 (48 KB)	OS	substituted image of Marian Rejewski of approcimately 1943 by another one of 1932 from https://commons.wikimedia.org/wiki/File:MR_1932_small.jpg
	04:58, 27 April 2015	500 × 211 (51 KB)	OS	User created page with UploadWizard