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• Hump master in a Chicago and Northwestern railroad yard operating a signal switch system which extends the length of the hump track. He is thus able to control movements of locomotives pushing the train over the hump from his post at the hump office; Chic

  • Uploaded by: The Library of Congress
  • License: No known copyright restrictions
  • 3 comments
  • 66 favorites
  • 53,301 views
  • Date taken: 1939
  • Date uploaded: 2008-01-08
  • Tags: libraryofcongress, dc:identifier=httphdllocgovlocpnpfsac1a34623, xmlns:dc=httppurlorgdcelements11, humpmaster, railroad, lever, man, jacket, glasses, hat, clipboard, schedule, oldtyme, intercom, kodaksafetypaper, chicago, locomotive, machinery, historicalphoto, history, 1942, vintage, chalkboard, midwest, chicagoandnorthwesternrailway, conductor
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