"Tipple, head house and conveyor. Harlan-Wallin Coal Corporation, Marne #1 Mine, Verda, Harlan County, Kentucky., 09/1946" From the National Archives, Records of the Solid Fuels Administration for War 1937-1948, Report of the Medical Survey of the Bituminous Coal Industry 1946-1947. National Archives Identifier 541387 http://research.archives.gov/description/541387