This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Bird's eye view Centennial Buildings Fairmount Park . Philadelphia NYPL Hades.tif en Print contains key to all buildings and numbered references to the occupants of ther buildings Dek nypl org Scan by NYPL NYPLimageDigitalID cfceefcacdabc information field Title Bird's eye view Centennial Buildings Fairmount Park Philadelphia