1 PROSPECTUS SUPPLEMENT This Prospectus Supplement, FOR THE PERIOD ENDING filed pursuant to Rule 424(b)(3), MAY 31, 1996 TO relates to Registration Statement PROSPECTUS DATED No. 33-43136-01 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, 1996 DISCOVER CARD TRUST 1991 C -------------------------- (Exact name of registrant as specified in its charter) Delaware 0-19735 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 2 Item 5. Other Events On or about May 15, 1996, Registrant made available the monthly Investor Certificateholders' Statement set forth as Exhibit 20. May 15, 1996 is also the date on which holders of Class B Certificates received final payment of principal and interest (the final payment of principal and interest with respect to the Class A Certificates was made available to the holders of Class A Certificates on April 15, 1996). Accordingly, the Trust terminated after such final payment and no further Monthly Investor Certificateholders' Statements will be forwarded to Investor Certificateholders. Item 7. Financial Statements and Exhibits (c) Exhibits Exhibit No. Description 20 Monthly Investor Certificateholders' Statement related to the distribution of May 15, 1996 and reflecting the performance of the Trust during the Due Period ended in April 1996, that accompanied the final distribution of principal and interest on May 15, 1996. 2 3 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 C (Registrant) By: DISCOVER RECEIVABLES FINANCING GROUP, INC. as originator of the Trust By: Birendra Kumar ---------------------------------- Birendra Kumar Vice President and Treasurer Date: May 31, 1996 3 4 EXHIBIT INDEX Exhibit No. Description - ----------- ----------- 20 Monthly Investor Certificateholders' Statement - (May 15, 1996). 4