Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Llanfyrnach Silver Lead Mine, 1 canlyniadau
- Leach, Abraham, Bulliber, Castlemartin, Pembroke, Gent, 1 canlyniadau
- Milford, Richard Philipps, Lord, d. 1823, 1 canlyniadau
- Llwyncelyn Silver-Lead Mine (Llanfyrnach, Wales), 1 canlyniadau
- Underwood, Riddle & Shapland, Bristol, 1 canlyniadau
- William Jones & Co. (Swansea, Wales), 1 canlyniadau
- Philip George & Co. (Bristol, England), 1 canlyniadau
- Morgan, Maurice, fl. ca. 1800, 1 canlyniadau
- Marsden, William, fl. ca. 1800, 1 canlyniadau