Maryland County Commissioners Section 153

      The county commissioners of the several counties of this State, shall, within four months after June 1, 1916, erect and thereafter maintain at each intersection of a county road with the State roads and state-aid roads, in their respective counties, a sign or fingerboard, substantially made, on which shall be legibly painted, in letters at least three inches in height, the name of the principal place or places to which such county road leads, with the distance thereto from such State or state-aid roads, such sign or fingerboard to be securely fastened on a substantial post firmly placed in the ground. In all counties of the State wherein the jurisdiction over the county roads is vested by law in any board or other officials, the duties herein imposed upon the county commissioners shall be and become the duties of such "board or other officials".