1914 National Highways map of the state of Massachusetts showing one thousand miles of national highways proposed by the National Highways Association, Washington D.C., by John C. Mulford, from the Digital Commonwealth - commonwealth wd376608g. (<a rel="nofollow" class="external free" href="https://www.digitalcommonwealth.org/search/commonwealth:wd376608g">https://www.digitalcommonwealth.org/search/commonwealth:wd376608g</a>)
John C. Mulford
Digital Commonwealth