(a) Marriage contracts duly proved or acknowledged, certified, or recorded shall be received as evidence in any court of record of this state, without further proof of their execution.
(b) When it shall appear to a court that any marriage contract duly acknowledged or proved and recorded is lost or is not in the power of the party wishing to use it, a copy duly certified under the hand and seal of the clerk and recorder may be received in evidence.
(c) Neither the certificate of acknowledgment nor probate of any marriage contract, nor the record or transcript thereof, shall be conclusive, but may be rebutted.