Challenge1930_C193,_PWS51.jpg

Description Challenge1930 C193, PWS51.jpg	The aircraft Caudron C.193 (F-AJSH, pilot Francois Arrachart) and PWS-51 (SP-ADC, pilot Józef Lewoniewski) before en:Challenge 1930 contest (cropped photo Chalenge1930.jpg )
Date	July 1930
Source	Marian Romeyko (editor): Polska lotnicza , Warsaw 1937.
Author	Polish photographer
Other versions

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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Original upload log

This image is a derivative work of the following images:

File:Chalenge1930.jpg licensed with PD-Polish
- 2007-05-03T15:17:42Z Liftarn 650x1084 (156753 Bytes) {{Information |Description=The aircraft before the [[:en:Challenge 1930]] contest. From the top: *SP-ADD - PWS-52 (Poland, pilot Franciszek Rutkowski, not classified) *OO-AKY - St. Hubert G1 (Belgium, in the French team, pi

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