Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs. Designating symbol SV. Form of individual image numbering: SV-1T-[number], SV-2T-[number], or SV-3T-[number]. "Flying completed 7-9-57". Flown by Robinson Aerial Surveys, Inc. Newark 7, N.J. "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/