It shall be no objection to the record of a deed that no official seal is appended to the recorded acknowledgment or proof thereof if, when the acknowledgment or proof purports to have been taken by an officer having an official seal, there is a statement in the certificate of acknowledgment or proof that the same is made under his hand and seal of office, and such statement shall be presumptive evidence that the affixed seal was attached to the original certificate.
Neb. Rev. Stat. §§ 76-243