DATE OF AUTHENTICATION:



                    TRUSTEE'S CERTIFICATE OF AUTHENTICATION

           This Bond is one of the Series A Bonds described in the within-
mentioned Resolution.

           Printed on the reverse hereof is the complete text of the opinion of
Bond Counsel, Rubin & Hays, 209 South Fifth Street, Louisville, Kentucky, a
signed original of which is on file with the undersigned, delivered and dated
on the date of the original delivery of and payment for the Series A Bonds.

                                                                   , Trustee


                                      By__
                                                  Authorized Officer

                             [FORM OF ASSIGNMENT]

                                  ASSIGNMENT

           For value received, the undersigned hereby sells, assigns and trans-
fers unto
          (Print or type name, address and Social Security No. or other Federal
          identifying Number of Transferee)
the within Bond and all rights therein, and hereby irrevocably constitutes and
appoints as attorney to transfer said Bond on the books kept for registration
of said Bond, with full power of substitution in the premises.



                                                (Signature of Assignor)

NOTICE:    The signature on this assignment must correspond with the name as it
           appears upon the face of the within Bond in every particular without
           alteration, enlargement or any change whatever.

           The following abbreviations, when used in the inscription on the
face of the within Bond, shall be construed as though they were written out in
full according to applicable laws and regulations:

           TEN COM - as tenants in common
           TEN ENT - as tenants by the entireties
           JT TEN - as joint tenants with right of survivorship
                     and not as tenants in common
           UNIF GIFT MIN ACT                  Custodian
                                (Cust)                     (Minor)
           under Uniform Gifts to Minors Act
                                                        (State)
           Additional abbreviations may also be used though not in
           the list above.
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