http://pec.lib.wvu.edu/record/P176431923Joint freight tariff applying on coal, bituminous, carloads ... from mines on the Baltimore and Ohio Railroad Company, Charleston Division, (located in the West Virginia region) … Emmitsburg Railroad, the Hagertown and Frederick Railway Company, the Western Maryland Railway Company ...Serial issue. Issued as: <em>Coal and Coke Series I. C. C.</em>, no. 2247:suppl.no.1. "Issued March 12, 1923, Effective April 14, 1923."Baltimore and Ohio Railroad Company.Railroads--Freight--Rates--United States.Western Maryland Railway Company.Hagerstown and Frederick Railway Company.Baltimore and Ohio Railroad Company. Charleston Division.Coal transportation--United States.Coal mines and mining--United States.Tariff on freight cars--United States.Emmitsburg Railroad.14256