Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Iron industry and trade -- Wales, South., 1 canlyniadau
- Wales -- History -- 18th century, 1 canlyniadau
- Iron-works -- Wales, South -- Records and correspondence, 1 canlyniadau
- Iron-works -- Wales -- Cefn Cribwr., 1 canlyniadau
- Forging -- Wales -- Trostrey., 1 canlyniadau
- Forging -- Wales -- Cefn Cribwr., 1 canlyniadau
- Forging -- Wales -- Rogerstone., 1 canlyniadau
- Iron-works -- Wales -- Trostrey., 1 canlyniadau
- Iron-works -- Wales -- Rogerstone., 1 canlyniadau
- Cefn Cribwr (Wales) -- Industries -- History., 1 canlyniadau
