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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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           | DescriptionDolphin (Canadian Air Force).jpg | 
           
             English: Sopwith Dolphins from No. 1 Fighter Squadron of the Canadian Air Force in England in December 1918 
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           | Date | 
           December 1918 | 
          
          
           | Source | 
           (Original text :  http://www.canadianwings.com/Aircraft/aircraftDetail.php?DOLPHIN-48) 
            Transferred from  en.wikipedia; transferred to Commons by  User:Sreejithk2000 using  CommonsHelper. 
              Original uploader was  Bzuk at  en.wikipedia (13 July 2008 (original upload date)) | 
          
          
           | Author | 
           Photographer: photographer for UK government. | 
          
          
           Permission ( Reusing this file) | 
           
             Expired crown copyright as a work of the British or Canadian government from over 50 years ago 
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         Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          This  Canadian work is in the  public domain in Canada because its copyright has expired due to one of the following: 
            - 1. it was subject to  Crown copyright and was first published more than 50 years ago, or
 
            
           it was not subject to Crown copyright, and 
           
            - 2. it is a photograph that was created prior to January 1, 1949, or
 
            - 3. the creator died more than 50 years ago.
 
            
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          | Public domainPublic domainfalsefalse | 
         
        
        
         
            | 
          This artistic work  created by the United Kingdom Government is in the  public domain. This is because it is one of the following: 
           
            - It is a photograph created by the United Kingdom Government and taken prior to 1 June 1957; or
 
            - It was commercially published prior to 1963; or
 
            - It is an artistic work other than a photograph or engraving (e.g. a painting) which was created by the United Kingdom Government prior to 1963.
 
            
           HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref:  HMSO Email Reply)  More information. 
           See also  Copyright and  Crown copyright artistic works. 
            
           
            
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):