Cram's street map of the Boston area : 260 square miles including Arlington, Belmont, Boston, Brookline, Cambridge, Chelsea, Dedham, Everett, Lexington, Malden, Medford, Melrose, Milton, Needham, Newton, Quincy, Revere, Somerville, Waltham, Watertown, Winchester and Winthrop
Description:
Residential security map assigning grades of "mortgage security" that were used to determine who should receive loans and which areas were safe investments.