Gundlach_periscope.jpg
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Summary
Description Gundlach periscope.jpg | Gundlach Periscope used to look forward (upper panel) and backwards (lower panel). |
Source | Photo published in a book: Leszek Komuda, "Polski czolg lekki 7TP", TBiU No.21, Warsaw (1973?) |
Author | Unknown author Unknown author |
Other versions |
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Licensing
Public domain Public domain false false |
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:
To uploader:
Please provide where and when the image was first published.
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