A certificate of a company whose transfer books are closed indefinitely for any reason shall be good delivery only if the required ownership transfer indemnification is affixed to or recorded upon the certificate. The indemnification acknowledges the assignor(s)' ultimate responsibility for the ownership of the certificate as of the date of the indemnification and shall be affixed or recorded only once during the lifetime of the certificate. Certificates delivered pursuant to this Rule must conform with all the applicable delivery requirements set forth in Rule 11550 of this Code.