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Abstract The Transportation Library's collection of H. H. Copeland and Son's maps consist of 74 maps and tables on U. S. railways dating from the early 1930's to the mid 1950's. The Copeland maps consist of traffic density maps and tables on ton miles, freight density and traffic distribution and other railway related tables and calculations. H. H. Copeland and Sons were an investment house, in existence from the late 19th century to at least the mid 1950's. The company ordered the compilations for...