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Subcollection: 1928: Aerial Survey of the Philadelphia Region
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[Aerial Survey of the Philadelphia Region], Plate 170
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 169
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 168
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 167
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 166
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 165
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 164
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 163
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 162
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 161
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 160
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 159
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 158
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 157
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 156
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 155
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 154
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 153
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 152
 Maps 1928: Aerial Survey of the Philadelphia Region
[Aerial Survey of the Philadelphia Region], Plate 151
 Maps 1928: Aerial Survey of the Philadelphia Region