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Aurora Ball Columbus Elgin Hamilton Hampden E. Howard Watch Co. (Keystone) E. Howard & Co. Illinois Lancaster Manistee Marion U.S. Watch Co. New York Watch Co. New York Standard Rockford Seth Thomas South Bend Tremont & Melrose Waltham

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Aurora
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Harper & Co.

Philadelphia

Initial Marking: H.&Co.

Location: Philadelphia

Years of Operation: 1857-1859

Predecessor: Harper & McClelland

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