Survey reports for Ynisarwed Colliery,
- P6/1/73.
- File
- 1937.
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 65. Examination of Nine Feet and Peacock seams.
Survey reports for Ynisarwed Colliery,
Part of Monmouthshire and South Wales Coal Owners Association Records,
Samples 65. Examination of Nine Feet and Peacock seams.