http://pec.lib.wvu.edu/record/P14542undatedThe Coal industry of the state of West Virginia : compiled to give the public some general information on the subject.<p> Pamphlet. "Press of Ohio Valley Publishing Co., Parkersburg, W. Va." Copy imperfect: Some pages or sections of pages removed.</p>Northern West Virginia Coal Operators Association. Coal mines and mining--West Virginia--Pictorial works.14256