It shall be unlaw­ful to main­tain any­where in the Coun­ty any sign, sig­nal, mark­ing or device oth­er than a traf­fic sign or sig­nal autho­rized by the Coun­ty Board or the Illi­nois Depart­ment of Trans­porta­tion, which pur­ports to be or is an imi­ta­tion of or resem­bles an offi­cial traf­f­ic-con­trol device or rail­road sign or sig­nal in view of any street or high­way, and it shall be unlaw­ful to place or main­tain any sign which hides from view any law­ful traf­f­ic-con­trol device.  It shall be unlaw­ful to main­tain or oper­ate any flash­ing or rotat­ing bea­con of light in view of any street or highway.