Seam Analysis - Brynlliw Colliery. Six Feet Seam. S21 Face. Sampled 21st January 1971 (1442/71/WW) Feb 1971

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/1599
  • Dates of Creation
      Feb 1971
  • Language of Material
      English
  • Physical Description
      1 file