Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs. Designating symbol DC. Form of individual image numbering: DC-1R-[number], DC-2R-[number], or DC-3R-[number]."Flying completed 8-10-57" Flown by Woltz Studios, Inc. Des Moines, Iowa. "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/