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• This photograph represents an inspection of angles on the escape wheel. The machine is a high precision toolmaker's microscope, 1936

  • Uploaded by: U.S. National Archives
  • License: No known copyright restrictions
  • 2 comments
  • 6 favorites
  • 12,858 views
  • Date taken: 1936
  • Date uploaded: 2012-07-03
  • Tags: nara:arcid=518434, usnationalarchives, lewishine, thegreatdepression, lancaster, pennsylvania, 1936
  • Visibility: public