| Source: St. Louis, Queen City of the West (St. Louis,
Mo.: Mercantile Advancement Co., 1898-99) Location: St.L. / 9.17 / Sa22g | |
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| Business Name: | Keystone Manufacturing Company |
| Building Illustration: | No |
| Address: | 404 North Main St. |
| Page: | 89 |
| Illustration: | No |
| Advertisement: | No |
