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Courtesy of UC Riverside, California Museum of Photography
http://www.oac.cdlib.org/ark:/13030/kt929017gb/?order=1
Title:
Granulating Smokeless Powder at the DuPont smokeless powder plant, Carney's Point Penn's Grove, N.J. across the river from Wilmington, Del.
Creator/Contributor:
Not Known
Gifford M. Mast
Date:
1928
Contributing Institution:
UC Riverside, California Museum of Photography