Official signature presumed genuine.

In the cases contemplated in sections 622.41 through 622.50 , the signature of the officer shall be presumed to be genuine until the contrary is shown. [C51, §2436; R60, §4056; C73, §3711; C97, §4643; C24, 27, 31, 35, 39, § 11304; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §622.51 ] 2020 Acts, ch 1063, §330