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Format: Aerial Photographs
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[Aerial Survey of the Philadelphia Region], Plate 13
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 12
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 11
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 10
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 9
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 8
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 7
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 6
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 5
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 4
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 3
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 2
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 1
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Overview Index 2
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Overview Index 1
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Detailed Index Mosaic
 Maps 1928: Aerial Survey of the Philadelphia Region
Aerial Survey of Philadelphia, PA, Plate 33
 Maps 1930 (ca): Dallin, Aerial Survey of Philadelphia, PA
Aerial Survey of Philadelphia, PA, Plate 32
 Maps 1930 (ca): Dallin, Aerial Survey of Philadelphia, PA
Aerial Survey of Philadelphia, PA, Plate 31
 Maps 1930 (ca): Dallin, Aerial Survey of Philadelphia, PA
Aerial Survey of Philadelphia, PA, Plate 30
 Maps 1930 (ca): Dallin, Aerial Survey of Philadelphia, PA