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  • 21.

    1936-1938

    1936-1938

  • 22.

    1923, undated

    1923, undated

  • 23.

    1947-1948

    1947-1948

  • 24.

    1947 July-December

    1947 July-December

  • 25.

    Medical Conditions

    Medical Conditions

  • 26.

    B

    B

  • 27.

    Correspondence and reports

    Correspondence and reports

  • 28.

    1930-1932

    1930-1932

  • 29.

    1945 July-December

    1945 July-December

  • 30.

    1919-1920

    1919-1920

  • 31.

    1937-1938

    1937-1938

  • 32.

    High-Hut

    High-Hut

  • 33.

    1944-1947

    1944-1947

  • 34.

    1940 May 1

    1940 May 1

  • 35.

    1938-1939

    1938-1939

  • 36.

    1919 January-November

    1919 January-November

  • 37.

    Accident Reports (Restricted)

    Accident Reports (Restricted)

  • 38.

    National Bituminous Coal Commission

    National Bituminous Coal Commission

  • 39.

    1919 April-November

    1919 April-November

  • 40.

    1947-1949

    1947-1949