Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs. Designating symbol BKG; form of individual image numbering: BKG-1-[number], BKG-2-[number], BKG-3-[number],BKG-4-[number], BKG-5-[number], or BKG-6-[number]."Date of completion November 16, 1938" Flown by Iowa Aerial Surveys, Des Moines, Iowa. "Approximate scale, 1:20,000" [refers to individual images from which mosaic was made]. Library's copy 2 consists of photographic negatives (4 x 5 in.) corresponding to each of the images in its copy 1.
Contact the Map Collection at The University of Iowa Libraries: http://www.lib.uiowa.edu/maps/contact/
