Any commissioner appointed by or under the provisions of Article XIII of this act¹ who shall knowingly violate his duty or knowingly omit or fail to do his duty thereunder or violate any part of his oath, shall be guilty of perjury, and, upon conviction thereof, shall be sentenced to pay a fine not exceeding one thousand ($1,000) dollars, or to undergo an imprisonment of not more than one (1) year, or both, in the discretion of the court.