patent model, watch dust ring

patent model, watch dust ring

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Location
Currently not on view
Object Name
watch part
patent model, watch dust ring
Other Terms
watch, part of; patent model, watch dust ring; Mechanical, Spring-Driven; Pocket Watch
date made
1868
patent date
1868-03-03
inventor
Howard, Edward
place made
United States
associated place
United States: Massachusetts, Boston
Physical Description
metal, "brass" (overall material)
Measurements
overall: 1/4 in x 1 7/8 in; x.635 cm x 4.7625 cm
ID Number
ME.309051
catalog number
309051
license number
75018
accession number
89797
patent number
75,018
See more items in
Work and Industry: Mechanisms
Data Source
National Museum of American History
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