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water tank computing slide rule

water tank computing slide rule

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Currently not on view
Object Name
Water Tank Computing Slide Rule
date made
associated date
Des Moines Bridge & Iron Company
Physical Description
celluloid (overall material)
overall-from catalog card: 8 1/4 in x 3 in; x 20.955 cm x 7.62 cm
overall: 8 1/8 in x 3 in; x 20.6375 cm x 7.62 cm
ID Number
accession number
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Work and Industry: Heavy Machinery
Data Source
National Museum of American History
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