Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs. Designating symbol AJB. Form of individual image numbering: AJB-1B-[number], AJB-2B-[number],or AJB-3B-[number]."Flying completed July 23, 1941." Flown by Park Aerial Surveys, Inc. Louisville, Kentucky. "Approximate scale, 1:20,000" [refers to individual images from which mosaic was made]. Contact the Map Collection at The University of Iowa Libraries: http://www.lib.uiowa.edu/maps/contact/