signs or signals. No person shall without lawful authority attempt to or in fact alter, deface, injure, knock down or remove any official traffic-control device or any railroad sign or signal or any inscription, shield or insignia thereon, or any part thereof. History: 1941 Comp., § 68-2209, enacted by Laws 1953, ch. 139, § 38; 1953 Comp., § 64-16-9; recompiled as 1953 Comp., § 64-7-109, by Laws 1978, ch. 35, § 389.