Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
HELWIG BOLT AND RIVET CLIPPER COMPANY
From Encyclopedia Dubuque
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HELWIG BOLT AND RIVET CLIPPER COMPANY. The 1890-91 Dubuque City Directory listed the northeast corner of 9th and Main.
