Geo. H. Walker & Co.Prime meridian: Washington, D.C.; Includes illustrated border.; "Entered according to Act of Congress in the year 1848 by Ensign's and Thayer ..."; Includes county divisions for Ohio, Indiana, Illinois, Missouri, Michigan, and parts of Wisconsin and Iowa.; "Drawn and engraved by J.M. Atwood, N. York."71 x 89 centimetersJPEGUMN_ALMA:9954282360001701eng(Boston, )PublicMap of Worcester districtMaps1897University of Minnesota