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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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        Summary 
        
         
          
           | Description | 
           Russian front gas attack.jpg
             English: This image shows a World War I German gas attack on the eastern front, and was photographed from the air by a Russian airman. The image was titled, "German Frightfulness from the Air" 
             
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           | Date | 
           before 1919 | 
          
          
           | Source | 
           Francis A. March, "History of the World War", 1919, Chicago, pg 332. | 
          
          
           | Author | 
           Francis A. March | 
          
         
         
        These picture looks like File:Bundesarchiv Bild 183-F0313-0208-007, Gaskrieg (Luftbild).jpg
        Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          This media file is in the  public domain in the  United States. This applies to U.S. works where the copyright has expired, often because its first  publication occurred prior to January 1, 1923. See  this page for further explanation. 
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          This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the  rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See  Wikipedia:Public domain and  Wikipedia:Copyrights for more details. | 
          
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