February 7, 2006

Gabriel Blasi
IRSA Investments & Representations Inc.
Bolivar 10B
1066 Buenos Aires, Argentina

RE:        Schedule 13G

Enclosed pursuant to Rule 13d-1(b) under the Securities Exchange Act of 1934 is
a report on Schedule 13G reporting beneficial ownership at December 31, 2005 by
Ameriprise Financial, Inc. in Common Stock of IRSA Investments & Representations
Inc.

Sincerely,





/s/ Steve Turbenson
-------------------
    Steve Turbenson
    Director - Fund Administration

Enclosure





                       SECURITIES AND EXCHANGE COMMISSION

                            Washington, D. C. 20549

                                  SCHEDULE 13G


                 Under the Securities and Exchange Act of 1934


                    IRSA Investments & Representations Inc.
--------------------------------------------------------------------------------
                                (Name of Issuer)


                                  Common Stock
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   450047204
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                               December 31, 2005
--------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

           This Schedule is filed pursuant to Rule 13d-1(b)

The information required in the remainder of this cover page (except any items
to which the form provides a cross-reference) shall not be deemed to be "filed"
for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or
otherwise subject to the liabilities of that section of the Act but shall be
subject to all other provisions of the Act.





CUSIP NO.   450047204

1)     Name of Reporting Person                 Ameriprise Financial, Inc.

       S.S. or I.R.S. Identification            IRS No. 13-3180631
       No. of Above Person

--------------------------------------------------------------------------------

2)     Check the Appropriate Box                (a)
                                                -----------------
       if a Member of a Group                   (b) X*
                                                ------

*This filing describes the reporting person's relationship with other persons,
but the reporting person does not affirm the existence of a group.

--------------------------------------------------------------------------------

3)     SEC Use Only

--------------------------------------------------------------------------------

4)     Citizenship or Place of Organization     Delaware

       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

       (5) Sole Voting Power                    -0-
       ---------------------                    ----------
       (6) Shared Voting Power                  -0-
       -----------------------                  ----------
       (7) Sole Dispositive Power               -0-
       --------------------------               ----------
       (8) Shared Dispositive Power             1,668,874
       ----------------------------             ----------

--------------------------------------------------------------------------------

9)     Aggregate Amount Beneficially
       Owned by Each Reporting Person           1,668,874

--------------------------------------------------------------------------------

10)    Check if the Aggregate Amount in
       Row (9) Excludes Certain Shares          Not Applicable

--------------------------------------------------------------------------------

11)    Percent of Class Represented by
       Amount In Row (9)                        7.0%

--------------------------------------------------------------------------------

12)    Type of Reporting Person                 CO

--------------------------------------------------------------------------------




1(a)   Name of Issuer:                   IRSA Investments & Representations Inc.

1(b)   Address of Issuer's Principal     Bolivar 10B
       Executive Offices:                1066 Buenos Aires, Argentina

2(a)   Name of Person Filing:            Ameriprise Financial, Inc.


2(b)   Address of Principal Business Office:
                                         Ameriprise Financial, Inc.
                                         145 Ameriprise Financial Center
                                         Minneapolis, MN  55474


2(c)   Citizenship:                      Delaware

2(d)   Title of Class of Securities:     Common Stock

2(e)   Cusip Number:                     450047204

3      Information if statement is filed pursuant to Rules 13d-1(b) or 13d-2(b):
       This Statement is filed pursuant to Rule 13d-19b) or 13d-2(b) and the
       person filing, Ameriprise Financial, Inc., is a parent holding company in
       accordance with Rule 13d-1(b)(1)(ii)(G). (Note: See Item 7)

4(a)   Amount Beneficially Owned as of December 31, 2005: 1,668,874 shares may
       be deemed beneficially owned by the reporting person within the meaning
       of Rule 13d-3 of the Securities Exchange Act of 1934. The reporting
       person, and each of its subsidiaries identified on the attached Exhibit
       I, disclaims beneficial ownership of any shares reported on this
       Schedule.

4(b)   Percent of Class: 7.0%

4(c)   Number of Shares as to which such person has:
       (i)    Sole power to vote or to direct the vote: 0
       (ii)   Shared power to vote or direct the vote: 0
       (iii)  Sole power to dispose or to direct the disposition of: 0
       (iv)   Shared power to dispose or to direct the disposition of 1,668,874




5      Ownership of 5% or Less of a Class: Not Applicable

6      Ownership of more than 5% on Behalf of Another Person: Not Applicable

7      Identification and Classification of the Subsidiary Which Acquired the
       Security Being Reported on by the Parent Holding Company:

                                                See Exhibit I

8      Identification and Classification of Members of the Group:

                                                Not Applicable

9      Notice of Dissolution of Group:

                                                Not Applicable

10     Certification:

       By signing below I certify that, to the best of my knowledge and belief,
       the securities referred to above were acquired in the ordinary course of
       business and were not acquired for the purpose of and do not have the
       effect of changing or influencing the control of the issuer of such
       securities and were not acquired in connection with or as a participant
       in any transaction having such purposes or effect.

       After reasonable inquiry and to the best of my knowledge and belief, I
       certify that the information set forth in this statement is true,
       complete and correct.

                                    Ameriprise Financial, Inc.

Dated: December 31, 2005            By /s/ Steve Turbenson
                                    -----------------------
                                           Signature

                                           Steve Turbenson
                                           Director - Fund Administration
                                           Name/Title

                                           Telephone:         (612) 671-2059





                                 Exhibit Index

Exhibit I  Identification and Classification of the Subsidiary which Acquired
           the Security Being Reported on by the Parent Holding Company.





                                    Exhibit I

                                       to

                                  Schedule 13G

Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company.
The classification and identity of the relevant subsidiaries is as follows:

Bank - Ameriprise Trust Company, a trust company organized under the laws of the
State of Minnesota

Investment Company - RiverSource Funds, comprised of investment companies
registered under section 8 of the Investment Company Act of 1940

Investment Adviser - RiverSource Investments, LLC, an investment adviser
registered under section 203 of the Investment Advisers Act of 1940.