The location and boundaries of the zoning districts are established and shown on a map titled "Zoning Map, Medfield, Massachusetts" dated January 30, 2003, which is a part of this Bylaw and which herein is called the "Zoning Map." The authenticity of the Zoning Map shall be identified by the signature of the Town Clerk and the imprinted seal of the Town under the words: "This is to certify that this is the Zoning Map of the Town of Medfield, Massachusetts, referred to in the Zoning Bylaw of the Town of Medfield, Massachusetts, which was adopted by the Town Meeting commencing June 2, 2003." Any change in the location of boundaries of a zoning district by amendment of this Bylaw shall be authenticated in the same manner. The Zoning Map shall be kept on file in the office of the Planning Board. Photographic reductions of this Zoning Map may serve as copies of the Zoning Map.