If any officer authorized to take the proof or acknowledgment of any conveyance of real or personal estate, or of any other instrument which by law may be recorded, shall wilfully and falsely certify that any such conveyance or instrument was acknowledged by any party thereto, when in truth such acknowledgment was not made, or that any such instrument or conveyance was proved, when in truth such proof was not made, he shall, upon conviction, be guilty of forgery.