Atlas of Newport, Jamestown, Middletown & Portsmouth, Rhode Island, from actual survey and city records Sanborn Map Company creator cartographic nyu New York Sanborn Map Company 1921 monographic eng map 1 v. : 32 col. maps ; 63 cm. Sanborn Map Company. Sheet 1 includes index map at scale ca. 1:18,000, location map, and index of streets and major buildings. W0712100 W0711700 N0414500 N0414200 n-us-ri Newport (R.I.) Maps Jamestown (R.I.) Maps Middletown (R.I.) Maps Portsmouth (R.I.) Maps Sanborn Maps for the State of Rhode Island http://library.brown.edu/cds/sanborn 576 maps (documents)No Copyright - United StatesCollection is open for research.