Portsmouth Rhode Island antique map original.This hard to find original vintage map of Portsmouth comes from Beer's Atlas of the State of Rhode Island and Providence Plantations of 1870. This map was published by D.G. Beers & Co. 320 Chestnut St. Philadelphia in 1870. This authentic historical map of Portsmouth has a blank verso or back side and beautiful coloring on sturdy paper. This old map of Portsmouth is truly a fine piece of Rhode Island history just after the American Civil War. The landowners and business present at the time are visible on most of these maps. An original antique map of Portsmouth of this quality would make a fine addition to any collection or for beautiful display in home or for office decoration.