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 Name                           Last modified      Size  
 Parent Directory                                    -   
 plate-1-thumb.jpg              2011-01-20 12:37  7.3K  
 plate-1-preview.pdf            2011-01-20 12:37  5.8M  
 plate-1.pdf                    2011-01-20 12:36   48M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/1981/0756/
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