Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Quarries and quarrying -- Wales -- Montgomeryshire., 2 canlyniadau
- Unemployment., 1 canlyniadau
- Penwar Quarry., 1 canlyniadau
- Tirymynech (Montgomeryshire, Wales)., 1 canlyniadau
- Mills and mill-work -- Wales -- Montgomeryshire., 1 canlyniadau
- Gungrog-fawr (Montgomeryshire, Wales)., 1 canlyniadau
- Railroads -- Wales -- Montgomeryshire, 1 canlyniadau