(A) Where a use is classified as a special use under this chapter, and exists as a special or permitted use at the date of the adoption of this chapter, it shall be considered to be a legal special use.
(B) Where a use is not allowed as a special or permitted use under this chapter, and exists as a special use at the date of the adoption of this chapter, it shall be considered to be a nonconforming use and shall be subject to the provisions of § 153.27 hereof.
('69 Code, App. A, § 4.7-9)