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Hartness Screw-Thread Comparator - Model

Hartness Screw-Thread Comparator - Model

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Location
Currently not on view
Object Name
Comparator, Screw Thread
Measurements
overall - comparator: 7 1/2 in x 3 1/4 in x 6 1/4 in; 19.05 cm x 8.255 cm x 15.875 cm
overall - figure: 9 1/8 in x 3 1/2 in x 3 in; 23.1775 cm x 8.89 cm x 7.62 cm
ID Number
MC.319951
catalog number
319951
accession number
240911
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Work and Industry: Mechanical and Civil Engineering
Data Source
National Museum of American History
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