622.26  Private writing — acknowledgment.
  Every private writing, except a last will and testament, after being acknowledged or proved and certified in the manner prescribed for the proof or acknowledgment of conveyances of real property, may be read in evidence without further proof.
[C51, §2407; R60, §4000; C73, §3656; C97, §4621; C24, 27, 31, 35, 39, §11279; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §622.26]