Image:Biuro Szyfrów ( Palac Saski ) 10.jpg
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Biuro_Szyfrów_(_Palac_Saski_)_10.jpg (550 × 391 pixels • taille du fichier : 64 ko • type MIME : image/jpeg)
 Ce fichier et les informations de sa page de description sont présents sur Wikimedia Commons. |
| Description |
The Saxon Palace, in Warsaw, where German Enigma ciphers were first broken by Biuro Szyfrów (1932). |
|---|---|
| Source |
Budownictwo Wojskowe, Warszawa, |
| Date |
1935 |
| Author |
? |
| Permission |
Public Domain |
 |
This image is in the public domain because according to the non-retrospective copyright law of July 10, 1952, of the People's Republic of Poland  , all photographs by Polish photographers published before the law was changed on May 23, 1994 without a clear copyright notice are assumed public domain. This applies worldwide. |
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