Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs. Designating symbol BZJ. Form of individual image numbering: BZJ-1V-[number], BZJ-2V-[number], or BZJ-3V-[number]."Flying completed 5-21-58" Flown by Park Aerial Surveys, Inc. Louisville, K.Y. "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/