Coegnant Colliery. Lower Seven Feet Seam. Examination of two seam sections. Samples Taken - 18th September 1969 (1377/69/WW) Dec 1969

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/1512
  • Dates of Creation
      Dec 1969
  • Language of Material
      English
  • Physical Description
      1 file