Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs. Designating symbol SX. Form of individual image numbering: SX-1H-[number], SX-2H-[number], SX-3H-[number], SX-4H-[number], or SX-5H-[number]."Flying completed 9-13-51" Flown by Woltz Studios, Des Moines, Iowa. "Approximate scale, 1:20,000" [refers to individual images from which mosaic was made].
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