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The Hagley Digital Archives provides online access to selected items from the Hagley Library's collection of images, documents, and publications related to the history of business, technology, and society.
Saltpeter refinery in Upper Yard
Laboratory building at far left.
Macklem, John W., 1867-1948
E.I. du Pont de Nemours & Company
The following note by Hagley staff taken from copy of photograph in Accession 2017.226, Box 10: Building on right destroyed in 1890 explosion (from center two story structure). See Hagley ID: 1968010_001_02_15 for post 1890 appearance after rebuilding.
Explosives industryGunpowder industry
E.I. du Pont de Nemours & Company. Brandywine WorksE.I. du Pont de Nemours & Company. Eleutherian MillsE.I. du Pont de Nemours & Company. Upper Yard
1 photographic print : b&w ; 6 x 8 in.
Audiovisual Collections and Digital Initiatives Department, Hagley Museum and Library
John W. Macklem collection of DuPont Company powder yards photographs (Accession 1968.010)
Box 1, Folder 2
[Description and dates], Hagley ID, Box/folder number, John W. Macklem collection of DuPont Company powder yards photographs (Accession 1968.010), Audiovisual Collections and Digital Initiatives Department, Hagley Museum and Library, Wilmington, DE 19807
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