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Map of a reconnaissance of the approaches to Philadelphia showing the positions and lines of defence on the north front of the city /
Topographic map of northern Philadelphia and small adjacent part of Montgomery County showing Civil War earthworks and batteries. Relief shown by contours and hachures. Signed in handwriting (brown ink): George Davidson, Assistant ...
Contributor: United States Coast Survey Site/Collection: Original Format: Map Date: 1863 View catalog record
Perspective map not drawn to scale. LC Panoramic maps (2nd ed.), 831.2 Available also through the Library of Congress Web site as a raster image. 1 map ; 42 x 62 cm.
Contributor: Spofford, Edward W. Site/Collection: Geography and Map Division - Panoramic Maps - Cities and Towns - American Memory - Main Catalog Original Format: Map Date: 1926 View catalog record