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| Type | Company |
| Location | Mehlem (Bonn) |
| Founding | 1869 |
| Industry | Nonmetallic Minerals Industry |
| NACE code | 23.2 |
| Succeeding org. | Didier Werke AG |
| Holdings | Newspaper clippings: 1914, 1918-1921, 1925, 1927-1942,
1971-1988 Annual reports: 1921,1923-1942 |
| Signature | A10 R 139 |
| URI | https://pm20.zbw.eu/folder/co/019036 |
| ID | co/019036 |