Eckert, Max, 1868-1938Width of traffic line indicates tons of shipping along route. "Friedr. Vieweg u. Sohn, Brunswick"--lower right.27 x 51 centimetersJPEGUMN_ALMA:9919691530001701engLongmans Green & Co. (London)PublicMap of ocean traffic (1901)MapsWorld1901University of Minnesota