Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Germany -- Description and travel, 1 canlyniadau
- Mines and mineral resources -- Sweden, 1 canlyniadau
- Lead, 1 canlyniadau
- Lead ores, 1 canlyniadau
- Copper, 1 canlyniadau
- Brass, 1 canlyniadau
- Chester (England) -- Commerce, 1 canlyniadau
- Denmark -- Description and travel, 1 canlyniadau
- Sweden -- Description and travel, 1 canlyniadau