Department of Mines and Resources Mines, Forests and Scientific Services Branch Bureau of Mines - Division of Fuels. Physical and Chemical Survey of Coals from Canadian Collieries Number 5. Drumheller Coalfield. Memorandum Series No.97 December, 1947. Interior is clean and solid, very gently read. Stiff brown paper stapled wraps. Some spotty discolouration to the front wrap, 4mm tear to the bottom spine edge of the front wrap, lightly bumped and rubbed to extremities, faded "Received" stamp to the front wrap.