No person shall erect signs, markers, or inscriptions of any type within the limits of a city park without written approval of the city planner and parks and recreation commission. Allowed signs shall be limited to identification signs, directional signs and donor plaques. [Ord. 914 Art. 2, § 5, 2016; Ord. 869 Art. 2, § 8, 2013; Ord. 860 Art. 2, § 8; Ord. 744 Art. 2, § 8; Ord. 528 § 1; Ord. 286 § 8.]