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Helm & Hahn Co. Maker’s Mark
Helm & Hahn Maker’s Mark
Helm & Hahn Co. Maker’s Mark
Helm & Hahn Maker’s Mark
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Helm & Hahn Co.

Country

City

Pittsburgh PA

Era

c.1934 c.1950, c.1943

Categories: , Tags: , , ,
Description

c.1934 – c.1943: Manufacturers Building Pittsburgh PA

c.1950: 530 Duquesne Way Pittsburgh 22 PA

Rings & Mountings

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