"The Gorge," from Machinery Hall Armour Institute of Technology College Buildings Armour Flats (Chicago, Ill.) Main Building (Chicago, Ill. : South Federal Street) Photograph of the Main Building, designed by Patton & Fisher and constructed 1891-1893, and the other buildings on Federal Street (looking south). Photograph appears on page 33 of the 1906 Integral, the Armour Institute of Technology Yearbook. Photographer unknown. Armour Institute of Technology 1906 Still image Black and white photograph image/tiff islandora:1000216 0020607-1906-001 http://hdl.handle.net/10560/islandora:1000216 Armour Institute of Technology yearbooks, 1898-1940 Illinois Tech Libraries Illinois Institute of Technology en Chicago (Ill.) No Copyright - United States http://rightsstatements.org/vocab/NoC-US/1.0/