Pneumoconiosis Field Research Programme Cwmgrach Colliery - South Wales Coalfield. Examination of the Coal Seams and Associated Strata. Appendix 1. Dec 1954

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/110
  • Dates of Creation
      Dec 1954
  • Language of Material
      English
  • Physical Description
      1 file