Morlais. Investigation to determine the best position for the installation of a breaker in order to produce the maximum yield of coal in the proposed Heavy Medium Washery at Morlais Colliery. Period of Test Aug 1957 (206/57/1) Sep 1957

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/354
  • Dates of Creation
      Sep 1957
  • Language of Material
  • Physical Description
      1 file