| Ref No | SWCC/MNA/COL/5 |
| Title | Merthyr Llantwit Colliery |
| Description | Coal production books, 1894-1904. |
| Date | 1894-1904 |
| Person_Code | ANW/CORP/5200 |
| ANW/CORP/5199 |
| Place_Code | ANW/PLACE/38 |
| Extent | 2 volumes |
| AccessConditions | Access unrestricted unless stated otherwise. |