Cmwgwili Colliery. Upper 9 Ft and 4 Ft and Upper 6 Ft, Stannllyd and Big Vein. Seam Samples taken by Mr Ashleigh Bryan on the instruction of the Colliery Manager (SWL 1595/74) 1974

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/1657
  • Dates of Creation
      1974
  • Language of Material
      English
  • Physical Description
      1 file