Pwllbach Colliery. Investigation of the effect of a B.J.D. Aberton Disc Shearer, on the Yield of sized products (629/61/9) Jul 1961

This material is held atWest Glamorgan Archive Service

  • Reference
    • GB 216 D/D PRO/NCB/6/853
  • Dates of Creation
    • Jul 1961
  • Language of Material
    • English
  • Physical Description
    • 1 file