Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs. Designating symbol BKE. Form of individual image numbering: BKE-4F-[number], BKE-5F-[number], BKE-6F-[number], or BKE-7F-[number]."Flying completed 10-10-51" Flown by Penna. Aerial Surveys, Inc. New Cumberland, PA."Approximate scale, 1:20,000" [refers to individual images from which mosaic was made].
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