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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 
        
         
          
           | DescriptionArrowhead.jpg | 
           
             English: Obsidian  arrowhead. 
            Français : Flèche en obsidienne 
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           | Date | 
           November 29, 1999 or before | 
          
          
           | Source | 
            http://www.ornl.gov/info/news/pulse/pulse_v44_99.htm | 
          
          
           | Author | 
           
             This file is lacking author information. 
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           Permission ( Reusing this file) | 
           
            
             
              | Public domainPublic domainfalsefalse | 
              
             
            
             
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              This image is a work of a  United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a  work of the  U.S. federal government, the image is in the  public domain. 
               Please note that  national laboratories operate under varying licences and some are not free. Check  the site policies of any national lab before crediting it with this tag. 
                
               
                
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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