Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Richard Evans & Co. Ltd., 1 canlyniadau
- Murton Colliery (England), 1 canlyniadau
- Monkstone Manganese Mine (England), 1 canlyniadau
- Aspeich Copper Mines (France), 1 canlyniadau
- Haydock Collieries (Wales), 1 canlyniadau
- Davies, Morgan W., 1 canlyniadau
- Dobson, Samuel., 1 canlyniadau
- Evans, Thomas, engineer, 1 canlyniadau
- Thomas, William, engineer, 1 canlyniadau