Seam Analysis - Treforgan Colliery, Red Vein Seam. Sampled 17 and 18th November 1971 (1502/72/WRL) Apr 1972

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/1728
  • Dates of Creation
      Apr 1972
  • Language of Material
      English
  • Physical Description
      1 file