Plan showing the proposed level and surface works at the Drysiog Colliery and Cwm mawr Seam. Scale, 6 inches: 1 mile. n.d.

  • This material is held at
  • Reference
      GB 216 D/D Z 742/7a-b
  • Dates of Creation
      n.d.
  • Language of Material
      English
  • Physical Description
      2 plans