Each administrative department which is required to authenticate with a City seal any document issued by it shall have a departmental seal, which shall be in the custody of the director of the department, and shall be used as directed by him or her. The seal shall consist of a disc one and three-fourths (1-3/4) inches in diameter, upon which shall be the City banner, surrounded by a circle, upon which shall appear the words “City of Cleveland, O.” and “Department of ______________”, filling in the blank with the appropriate name.