Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Parry de Winton, J. -- Correspondence, 1 canlyniadau
- Willam, Lewis, of Neath -- Correspondence., 1 canlyniadau
- Homfray, Jeremiah, 1759-1833 -- Correspondence., 1 canlyniadau
- Homfray, Samuel, d. 1822 -- Correspondence., 1 canlyniadau
- Jones, John, of Velindre -- Correspondence, 1 canlyniadau
- Kendall, Edward, of Llangadog -- Correspondence., 1 canlyniadau
- Powell, Watkin, of Brecon -- Correspondence., 1 canlyniadau
- Sittitoes, P. -- Correspondence, 1 canlyniadau
- Taitt, William, of Cardiff -- Correspondence., 1 canlyniadau
- Willam, Lewis, of Neath, 1 canlyniadau
- Pob un
- Iron-works -- Wales, South -- Records and correspondence, 2 canlyniadau
- Iron industry and trade -- Wales, South., 1 canlyniadau
- Wales -- History -- 18th century, 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
