Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Treferig Valley Railway, 1 canlyniadau
- Aberpergwm Estate (Wales) -- Archives, 1 canlyniadau
- Aberpergwm Collieries Co Ltd (Wales), 1 canlyniadau
- Castellau Estate (Wales), 1 canlyniadau
- St. Donat's Castle Estate (Wales), 1 canlyniadau
- Aberpergwm Estate (Wales), 1 canlyniadau
- Williams family, of Aberpergwm -- Archives., 1 canlyniadau
- Smith family, of Castellau -- Correspondence, 1 canlyniadau
- Lloyd family, of Castellau and Aberpergwm -- Correspondence, 1 canlyniadau
- Smith family, of Castellau, 1 canlyniadau
- Pob un
- Forest of Dean (England : District), 2 canlyniadau
- Coal mines and mining -- Wales -- Glamorgan, 1 canlyniadau
- Administration of estates -- Wales -- Glamorgan, 1 canlyniadau
- Pirates, 1 canlyniadau
- Mineral industries -- England -- Forest of Dean -- Transportation, 1 canlyniadau
- Mines and mineral resources -- England -- Forest of Dean -- Transportation, 1 canlyniadau
- Shipment of goods -- Wales -- Chepstow, 1 canlyniadau
- Shipment of goods -- Wales -- Monmouth, 1 canlyniadau
- Shipment of goods -- England -- Lydney Pill, 1 canlyniadau
- Shipment of goods -- Ireland -- Wexford, 1 canlyniadau
