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2. Sanborn Maps: Pennsylvania, 1884-1938

Collections collections pennsylvania-state-university
1884. The Sanborn Map Company, the best known of the U.S. fire-insurance map producers, has made maps since 1867. The fire insurance maps produced by San...

3. Penn State Rare Maps

Collections collections pennsylvania-state-university
1490. The Donald W. Hamer Center for Maps and Geospatial Information digital map drawer contains the subset of our physical map collection that has been ...

4. OpenDataPhilly

Collections collections
OpenDataPhilly is a catalog of open data in the Philadelphia region. In addition to being the official open data repository for the City, it includ...