Category:19th-century maps of Allegheny County, Pennsylvania
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This category has the following 6 subcategories, out of 6 total.
Media in category "19th-century maps of Allegheny County, Pennsylvania"
The following 2 files are in this category, out of 2 total.
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The cities of Pittsburgh and Allegheny, with parts of adjacent boroughs, Pennsylvania (NYPL b20625668-5365399).tiff 7,760 × 10,328, 2 pages; 229.57 MB