Issuer ? MINES DE FER DE HERAS-SANTANDER
| Siège social |
| - Heras (Espagne ) appearing in yearbooks from 1914 to 1929 |
| Siège administratif / Bureaux |
| Chaussée-d'antin, 51 - Paris (France , Paris ) appearing in yearbooks from 1920 to 1920 |
| Rue de la chaussée d'antin, 51 - Paris (France , Paris ) appearing in yearbooks from 1923 to 1927 |
| Chaussée d'abtin, 51 - Paris (France , Paris ) appearing in yearbooks from 1928 to 1928 |