The boundaries of the use districts included herein shall be shown by one or a series of maps entitled, "Official Zoning Map, City of North Charleston, South Carolina," which together with all explanatory matter thereon is hereby adopted by reference and declared to be a part of this ordinance.

Each map bearing the designation, "Official Zoning Map, City of North Charleston, South Carolina," shall be identified by the signature of the Mayor of the City of North Charleston, attested by the Clerk of Council, and bearing the seal of the City under the words: "Official Zoning Map, City of North Charleston, South Carolina," together with the date of the adoption of this ordinance.