In preparing a jurat to an oath or affirmation administered by a deputy, it shall be sufficient for the deputy to affix the deputy’s own name, together with the designation of the deputy’s official position, and the seal of principal, if any. [C24, 27, 31, 35, 39, § 1217; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §78.3 ] C93, §63A.3