Cambridge, Massachusetts: Spaulding Company Inc. 1981. First Edition.  pages plus 74 numbered maps. Oblong folio (17 x 11 inches). Metal spiral binding, balance of boards 1/4 cloth over light green printed paper. A nice copy with minor soiling. Near Fine. Spiral bound. 
Page  with an overall map of Belmont, noting what areas of the town are covered by the following numbered maps. Used for town planning purposes, but this examples didn't have any annotations in it with a quick review. Corrected through January 1, 1981.