A collection of business records including: half-yearly reports and balance sheets, 1889 - 1940 (incomplete); miscellaneous correspondence, 1897 - 1947; papers re supply of coal, 1918 - 1921; correspondence re renewal of mineral leases, 1920 - 1940; application to increase coal price, 1941 - 1943; monthly minutes of directors, July 1932 - July 1951 (1 vol.) And auditors' reports, 1909 - 1947.