Coal, Coke and By-Products Committee, Minutebook, 1920 Unit ID: IGS1/887 Date: 1920 Physical Description: 1 item
Colonial Survey and Geophysical Committee, 1944 Unit ID: GSM2/689 Date: 1944 Physical Description: 1 item
Colonial Survey Committee, 1912 - c. 1931 Unit ID: GSM2/684 Date: 1912 - c. 1931 Physical Description: 3 items