| Source: The St. Louis Builder/The Builder/The Realty Record and Builder, 1899-1911 (incomplete run) Location: Oversize / St.L. / 05 / R22 | |
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| Corporate Name: | Northwestern Iron Works |
| Address: | 2710 North 25th St. |
| Advertisement: | yes |
| Volume: | VIII |
| Issue: | 9 |
| Date of Publication: | November 1901 |
| Page: | 4 |
