Signs existing on April 9, 1971, and which did not conform to the provisions of the Sign Ordinance of March 10, 1971, shall remain nonconforming. No nonconforming sign shall be altered by increasing the overall dimensions. If damaged to the extent on 1/2 its fair market value, no nonconforming sign shall be reconstructed, provided that nothing contained herein shall prevent maintenance, repainting or posting of such signs.
A nonconforming sign which exists on a property which is sold or otherwise transferred must be eliminated or changed to conform to this chapter within 90 days of the date of sale or transference.