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Sinking practice and costs at the Pim Shaft, St. Louis Smelting & Refining Works, National Lead Co., St. Francois, Mo.
| Author: | Poston, Roy H. |
|---|---|
| Year: | 1932 |
| Document Type: | MAIN |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.11:6588 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6588 |
| Subjects: | Mineral industries--Missouri |
| Mining engineering--Missouri | |
| Mines and mineral resources--Missouri | |
| Link: | https://hdl.handle.net/2027/mdp.39015095085612 |
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