File:USGS stereoscope.jpg: Revision history

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15 June 2013

  • curprev 01:4801:48, 15 June 2013⚠️HamishBowman talk contribs 241 bytes +241 Example of a stereoscope from the USGS. http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_19 "This image is public domain/of free use unless otherwise stated." Credit: U.S. Geological Survey, Department of the Interior/USGS