MapSouvenir map of the World's Columbian Exposition at Jackson Park and Midway Plaisance, Chicago, Ill, U.S. A. 1893 "Assisted by: D.H. Roberts, H.M. Schnepff, Heinze Bro's.; Draughtsmen, Surveys & Grades Dep't. W.C.E." Available also through the Library of Congress Web site as a raster image.
- Contributor: Heinze, Hermann - A. Zeese & Co. - World's Columbian Exposition
- Date: 1892