Area No. 1. Losses due to Inclusion of Anthracite Grains in Washed and Dry Duff (81/55/1) Jul 1955

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/277
  • Dates of Creation
      Jul 1955
  • Language of Material
      English
  • Physical Description
      1 file