Conn. Gen. Stat. § 47-11: County clerk's certificates; recording in full not required.

When any instrument affecting the title to real estate, executed and acknowledged in another state, has a county clerk's certificate attached to it, attesting to the authority of the officer taking the acknowledgment, the town clerk with whom the instrument is filed for record shall not be required to record the certificate or certificates in full, provided he shall note upon the record thereof with a rubber stamp or otherwise the notation “County Clerk's certificate of authority of officer taking acknowledgment was attached to original instrument.” That notation shall be prima facie evidence of the officer's authority to take the acknowledgment.