File:Die Gartenbauschule Von Yella Hertzka 1926 (Treibhaus).jpg
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This work is in the public domain in the United States because it meets three requirements:
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Note: in addition to this statement, there must be a statement on this page explaining why the work was PD on the URAA date in its source country. Additionally, there must be verifiable information about previous publications of the work.
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