Seam Analysis - Brynlliw Colliery. Seams - Swansea 3 Feet, Swansea 6 Feet, Sampled - 27th October 1971, 3rd November 1971 (1487/71/WRL) Dec 1971

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/1562
  • Dates of Creation
      Dec 1971
  • Language of Material
      English
  • Physical Description
      1 file