| 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: | Frank A. Seifert Plastic Relief Co. |
| Address: | 2627-2631 Dayton St. |
| Advertisement: | yes |
| Volume: | XVIII |
| Issue: | 3 |
| Date of Publication: | June 1911 |
| Page: | 36 |
