It shall be unnecessary to offer in evidence the original copy of any ancient document, as defined in R.S. 13:3729, even though such original copy may be available, but in all cases copies of ancient documents made either from the original or from the recordation thereof shall be received in evidence if such copy offered in evidence be certified as a true copy by the custodian or by any legal deputy of the custodian of the records from which such copy is made.
La. R.S. § 13:3731