Baltimore Maryland detailed city plan Patapsco River Railroad 1860 Mitchell mapPlan of Baltimore. (North America, United States, Mid Atlantic Region, Maryland, Baltimore, Patapsco River, McClare Station, Baltimore & Ohio Railroad). Issued c. 1860, Philadelphia by S. A. Mitchell. Mid 19th century engraved map with original hand color. Mitchell maps of this mid century era were issued with a range of color as well as variant decorative borders. Nice looking example, pleasing age patina, any minor age flaws easy to overlook or