Air purifier and staircase at a similar base. From Library of Congress, Prints and Photographs Division, Historic American Engineering Record [HAER MN-100-68]
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Distillery, 1935 (Kentucky Historical Society)
A view of the school in 1967, the last year it was open. From ‘A little town lost’.
Bureau of Mines’ Minneapolis campus, seen in the 1970s. From NPS 2009.
Postcard from 1915 showing the plant. Published by the local drug store!
Two miners use hydraulic hammers to fill a waiting cart.
Golden Fleece Mine, between 1870 and 1890. Courtesy of Denver Public Library.
The Harrison family in front of their elevator and mill in 1897. A family photograph.
Coloradan Sugar Beets, 1938. Library of Congress, Prints & Photographs Division, FSA-OWI Collection, (LC-USF34- 015807-E).
Occidental, July 1996 (LaFontaine Collection)