Collection Items
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MapMap of a reconnaissance of the approaches to Philadelphia showing the positions and lines of defence ... Topographic map of the northern part of Philadelphia County and small adjacent part of Montgomery County showing proposed 1st-, 2nd-, and 3rd-order Civil War batteries. Signed in handwriting: George Davidson, Asst. Engr....
- Contributor: Davidson, George - United States Coast Survey - Bache, A. D. (Alexander Dallas)
- Date: 1863-01-01
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MapMap of a reconnaissance of the approaches to Philadelphia showing the positions and lines of defence ... 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: Davidson, George - Fauntleroy, A. R. - United States Coast Survey - Bache, A. D. (Alexander Dallas)
- Date: 1863-01-01
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MapMap of a reconnoissance [sic] of the approaches to Philadelphia showing the positions and lines of ... Topographic map of western Philadelphia and small adjacent parts of Montgomery and Delaware counties showing 1st- and 2nd-order Civil War earthworks and batteries. Relief shown by contours, hachures, and spot heights. Pen-and-ink,...
- Contributor: Whiting, Henry L. - United States Coast Survey - Bache, A. D. (Alexander Dallas)
- Date: 1863-01-01