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| Type | Company |
| Location | London (United Kingdom) |
| Industry | Mining |
| Related org. | H. E. Proprietary, Ltd. |
| Holdings | Newspaper clippings: 1912, 1913, 1922, 1923, 1936, 1937 Annual reports: 1912, 1936-1938 |
| Signature | A22 B 280 |
| URI | https://pm20.zbw.eu/folder/co/050048 |
| ID | co/050048 |