| 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: | Chemical Building Annex |
| Architect Firm Name: | Mauran, Russell & Garden |
| Volume: | X |
| Issue: | 12 |
| Date of Publication: | December 1903 |
| Page: | 70 |
| Remarks: | mention of just completed Chemical Building Annex |
