The Hwch/Stanllyd Seams and the Big Vein currently being worked at Cwmgwili Colliery (1655/77/SW) Jun 1977

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/1754
  • Dates of Creation
      Jun 1977
  • Language of Material
      English
  • Physical Description
      1 file