Hartmann, HughOther title: Map showing the deposits of ores and coal in Rhineland Prussia and Westphalia. Shows coal beds and ore deposits by period as well as railroads, blast-furnaces, and rolling mills. Detached from: Fifth annual report of the Geological Survey of Indiana, made during the year 1873. Indianapolis : Sentinel Company, Printers, 1874. Page 13.Imprint: [Indianapolis] [Geological Survey of Indiana], [1873]Dimensions: 18 x 11 cmJPEGG6361.H1 1873 .H3engIndiana. Geological SurveyPublicMines and mineral resourcesMap showing the deposits of ores & coal in Rh. Prussia & WestphaliaMapsGermany--North Rhine-Westphalia1873Indiana University