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PROSPECTUS SUPPLEMENT                         THIS PROSPECTUS SUPPLEMENT,     
FOR THE PERIOD ENDING                         FILED PURSUANT TO RULE 424(b)(3),
APRIL 30, 1997 TO                             RELATES TO REGISTRATION STATEMENT
PROSPECTUS DATED                              NO. 33-43724-01 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): May 15, 1997


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


Delaware                        0-19759                    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  14
                         Index to Exhibits is on page 4





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Item 5. Other Events

On May 15, 1997 the Registrant made available the Monthly Certificateholders'
Statement for the Due Period of April 1997, 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 E related to the Due Period
                            ending April 30, 1997.





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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 E
                                               (Registrant)

                                        By:  DISCOVER RECEIVABLES FINANCING
                                             GROUP, INC.
                                             as originator of the Trust


                                        By:         Birendra Kumar
                                             -----------------------------
                                             Birendra Kumar
                                             Vice President and Treasurer


Date: May 15, 1997





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                                 EXHIBIT INDEX

Exhibit No.                    Description
- -----------                    -----------

21                             Monthly Certificateholders' Statement for
                               Discover Card Trust 1991 E related to the Due
                               Period ending April 30, 1997.