Below such six-point rule and parallel thereto, extending across the entire ballot from one four-point rule to the other, shall be printed two-point hair line rules approximately five-sixteenths inch and not over twenty-four points apart of a number sufficient to meet the requirements of the party columns.

In place of the last two-point hair line rule there shall be printed a six-point diagram rule, extending across the entire ballot from one four-point rule to the other, at which the eight-point diagram rules dividing the ballot into vertical columns shall terminate.