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

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Aurora
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Manistee
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Marion
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U.S. Watch Co.
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Pocket Watch Database

Gruen Watch Co.

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Gruen Watch Co. Ephemera & Advertising Materials

The Gruen Watch Company's Plant, Cincinnati, Ohio. Postcard

The Gruen Watch Company's Plant, Cincinnati, Ohio.

Postcard

Gruen Watch Makers Guild, (East View) Time Hill, Cincinnari, O., U.S.A. Postcard

Gruen Watch Makers Guild, (East View) Time Hill, Cincinnari, O., U.S.A.

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