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Dodge Manufacturing Company Records
Skinner Engine Company Records
Chicago, Burlington & Quincy Railroad Negatives
Glass plate negatives, bridge construction
Glass plate negatives, bridge construction
Glass plate negatives, bridge construction
Glass plate negatives, bridge construction
Glass plate negatives, bridge construction
Acetate film negatives, construction, St. Louis, Missouri
Metropolis bridge construction, Illinois
Unidentified glass plate negatives (broken)
Alexander Melville Clark Patent
Harold E. Morehouse Flying Pioneers Biographies collection