File:Eduard Polon.png

This is a faithful photographic reproduction of an original two-dimensional work of art. The work of art itself is in the public domain in its source country for the following reason:

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The work of art itself is in the public domain in the United States for the following reason:

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Attribution: Historian professori

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