Issuer ? Charbonnages de Rykovski
| Siège social |
| Place de la liberté, 3 - Bruxelles (Belgique ) appearing in yearbooks from 1903 to 1903 |
| Siège administratif / Bureaux |
| Rue le peletier, 29 - Paris (France , Paris ) appearing in yearbooks from 1903 to 1903 |