Philadelphia: E. P. Knoll & Co., 1911. Linen backed map in color folded [8 vertical, 5 horizontal] into its original blue cloth, gilt titled case. 81x84cm. Detailed map of the greater metropolitan area with township and county boundaries. Slight, short damp stain along one margin, one edge slightly frayed, short vertical tears at folds. In very good condition. [2 copies found].