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PROSPECTUS SUPPLEMENT                          This Prospectus Supplement,
FOR THE PERIOD ENDING                          filed pursuant to Rule 424(b)(3),
SEPTEMBER 30, 1996 TO                          relates to Registration Statement
PROSPECTUS DATED                               No. 33-43136-02 and the
OCTOBER 8, 1991                                Prospectus dated October 8, 1991



                       SECURITIES AND EXCHANGE COMMISSION
                             450 Fifth Street, N.W.
                            Washington, D.C.  20549


                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                        Securities Exchange Act of 1934


       Date of Report (Date of earliest event reported): October 15, 1996


                           DISCOVER CARD TRUST 1991 D
                           --------------------------
             (Exact name of registrant as specified in its charter)


Delaware                         0-19734                   Not Applicable
- --------                         -------                   --------------
(State of                        (Commission               (IRS Employer
organization)                    File Number)              Identification No.)


c/o Discover Receivables Financing Group, Inc.
12 Read's Way
New Castle, Delaware                                19720
- ---------------------------------------------------------------
(Address of principal executive offices)            (Zip Code)

Registrant's telephone number, including area code: (302) 323-7826


                               Not Applicable
                        ----------------------------------
        (Former name or former address, if changed since last report)


                                Page 1 of 15
                       Index to Exhibits is on page 4





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Item 5. Other Events

On October 15, 1996 the Registrant made available the Monthly
Certificateholders' Statement for the Due Period of September 1996, which is
attached as Exhibit 21 hereto.

Item 7.  Financial Statements and Exhibits

(c) Exhibits



Exhibit No.                   Description
                           
21                            Monthly Certificateholders' Statement for 
                              Discover Card Trust 1991 D related to the Due
                              Period ending September 30, 1996.






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                                   SIGNATURES

        Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.

                                   DISCOVER CARD TRUST 1991 D
                                          (Registrant)
                                   
                                   By: DISCOVER RECEIVABLES FINANCING
                                       GROUP, INC.
                                       as originator of the Trust
                                   
                                   
                                   By:        Birendra Kumar
                                       -------------------------------
                                       Birendra Kumar
                                       Vice President and Treasurer
                                   

Date: October 15, 1996





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                                 EXHIBIT INDEX



Exhibit No.                                Description
- -----------                                -----------
                                        
21                                         Monthly Certificateholders' Statement for Discover Card Trust 1991 D 
                                           related to the Due Period ending September 30, 1996. 






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