MORGAN STANLEY DEAN WITTER DISCOVER & CO
424B3, 1997-07-08
FINANCE SERVICES
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         Subject to Completion, Pricing Supplement dated June 27, 1997

PROSPECTUS Dated June 2, 1997                      Pricing Supplement No. 7 to
PROSPECTUS SUPPLEMENT                     Registration Statement No. 333-27919
Dated June 2, 1997                                   Dated              , 1997
                                                                Rule 424(b)(3)
                                  $30,000,000
                  Morgan Stanley, Dean Witter, Discover & Co.
                          MEDIUM-TERM NOTES, SERIES C
                    EQUITY LINKED NOTES DUE JULY    , 2004

               The Equity Linked Notes due July    , 2004 (the "Notes") are
Medium-Term Notes, Series C of Morgan Stanley, Dean Witter, Discover & Co.
(the "Company"), as further described herein and in the Prospectus Supplement
under "Description of Notes--Fixed Rate Notes" and "-- Notes Linked to
Commodity Prices, Single Securities, Baskets of Securities or Indices."  The
Notes are being issued in minimum denominations of $1,000 and will mature on
July  , 2004 (the "Maturity Date").  The Issue Price of each Note will be $
(     % of the principal amount) (the "Issue Price"), and there will be no
periodic payments of interest on the Notes. The Issue Price represents a
minimum yield to maturity of     % per annum computed on a semi-annual bond
equivalent basis based on the Issue Price calculated from the Original Issue
Date to the Maturity Date.  The Notes will not be redeemable by the Company in
whole or in part prior to the Maturity Date.

               At maturity, the holder of each Note will receive the greater
of (a) the par amount of such Note ($1,000) ("Par") or (b) the Issue Price
plus an amount (the "Supplemental Redemption Amount") based on the percentage
increase, if any, in the Final Average Index Value of the S&P 500 Composite
Stock Price Index (the "S&P 500 Index"), as calculated by Standard & Poor's
("S&P"), a Division of the McGraw-Hill Companies, Inc., over the Initial
Average Index Value, each as further described below.  The Supplemental
Redemption Amount, if any, payable with respect to each Note at maturity will
be calculated on the Final Calculation Date and will equal the product of (i)
the Issue Price, (ii)          and (iii) a fraction, the numerator of which
will be the Final Average Index Value less the Initial Average Index Value and
the denominator of which will be the Initial Average Index Value.  The
Supplemental Redemption Amount cannot be less than zero.  The Initial Average
Index Value will equal the arithmetic average of the S&P 500 Index closing
values on each of July   , 1997, October   , 1997 and January   , 1998 (the
"Initial Index Determination Dates").  The Final Average Index Value will
equal either (i) the arithmetic average of the S&P 500 Index closing values on
each of July   , 2003, October   , 2003, January   , 2004, April   , 2004 and
July   , 2004 (the "Final Index Determination Dates") or (ii) if  the holder
of 100% of the outstanding Notes completes and delivers to the Company and the
Calculation Agent an Official Equity Stop Notice prior to 11:00 a.m. New York
City time on any Trading Day on or prior to July    , 2003,  the S&P 500 Index
closing value on such Trading Day (the "Equity Stop Option").  If the Final
Average Index Value is equal to or less than the Initial Average Index Value,
the holder of each Note will be repaid Par, but will not receive any
Supplemental Redemption Amount. The Initial Index Determination Dates and the
Final Index Determination Dates are subject to adjustment as set forth herein.

               For information as to the calculation of the Supplemental
Redemption Amount, the Initial Average Index Value and the Final Average Index
Value and certain tax consequences to beneficial owners of the Notes, see
"Supplemental Redemption Amount," "Initial Average Index Value," "Final
Average Index Value," "Final Calculation Date" and "United States Federal
Taxation" in this Pricing Supplement.

               The Company will cause each of the "Supplemental Redemption
Amount," the "Initial Average Index Value" and the "Final Average Index
Value" to be determined by Morgan Stanley & Co.  Incorporated (the
"Calculation Agent") for The Chase Manhattan Bank, as Trustee under the
Senior Debt Indenture.

               An investment in the Notes entails risks not associated with
similar investments in a conventional debt security, as described under "Risk
Factors" on PS- 7 through PS-9 herein.

                             -----------------
                                PRICE    %
                             -----------------

             Price to Public    Agent's Commissions(1)    Proceeds to Company
             ---------------    ----------------------    -------------------
Per Note.           %                     %                        %
Total....       $                      $                       $


(1) The Company has agreed to indemnify the Agent against certain liabilities,
    including liabilities under the Securities Act of 1933.

Capitalized terms not defined herein have the meanings given to such terms in
the accompanying Prospectus Supplement.

                          MORGAN STANLEY DEAN WITTER

                CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN
TRANSACTIONS THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE
NOTES OR THE INDIVIDUAL STOCKS UNDERLYING THE S&P 500. SPECIFICALLY, THE AGENT
MAY OVERALLOT IN CONNECTION WITH THE OFFERING, AND MAY BID FOR, AND PURCHASE,
THE NOTES OR INDIVIDUAL STOCKS UNDERLYING THE S&P 500 IN THE OPEN MARKET.  FOR
A DESCRIPTION OF THESE ACTIVITIES SEE "USE OF PROCEEDS AND HEDGING."

                Capitalized terms not defined herein have the meanings given
to such terms in the accompanying Prospectus Supplement.

Principal Amount..............   $30,000,000

Maturity Date.................   July     , 2004

Stated Interest Rate..........   0.00%

Minimum Yield to Maturity.....     %

Specified Currency............   U.S. Dollars

Issue Price...................      %

Settlement Date (Original Issue
  Date).......................         , 1997

CUSIP.........................

Book Entry Note or
  Certificated Note...........   Book Entry

Senior Note or Subordinated
  Note........................   Senior

Minimum Denominations.........   $1,000

Trustee.......................   The Chase Manhattan Bank

Agent.........................   Morgan Stanley & Co. Incorporated

Maturity Redemption Amount....   At maturity (including as a result of
                                 acceleration or otherwise), the holder of
                                 each Note will receive the greater of (a) the
                                 par amount of such Note ($1,000) ("Par") or
                                 (b) the Issue Price plus the Supplemental
                                 Redemption Amount, if any.  References herein
                                 to "Notes" refer to each $1,000 principal
                                 amount of any Note.

Supplemental Redemption Amount   The Supplemental Redemption Amount, payable
                                 with respect to each Note at maturity, will
                                 be calculated on the Final Calculation Date
                                 and will be an amount equal to the greater of
                                 (a) the product of (i) the Issue Price, (ii)
                                       and (iii) a fraction, the numerator of
                                 which will be the Final Average Index Value
                                 less the Initial Average Index Value and the
                                 denominator of which will be the Initial
                                 Average Index Value and (b) zero.  The
                                 Supplemental Redemption Amount is described
                                 by the following formula:


                    (Final Average Index Value -Initial Average Index Value)
Issue Price x    x  --------------------------------------------------------
                                   Initial Average Index Value

                                 ; provided that the Supplemental Redemption
                                 Amount will not be less than zero.


                                 The Company will cause the Calculation Agent
                                 to provide written notice to the Trustee at
                                 its New York office, on which notice the
                                 Trustee may conclusively rely, of the
                                 Supplemental Redemption Amount, on or prior
                                 to 11:00 a.m. on the Business Day preceding
                                 the Maturity Date.  See "Discontinuance of
                                 the S&P 500 Index; Alteration of Method of
                                 Calculation" below.

                                 All percentages resulting from any
                                 calculation with respect to the Notes will be
                                 rounded to the nearest one hundred-thousandth
                                 of a percentage point, with five
                                 one-millionths of a percentage point rounded
                                 upwards (e.g., 9.876545% (or .09876545) would
                                 be rounded to 9.87655% (or .0987655)), and
                                 all dollar amounts used in or resulting from
                                 such calculation will be rounded to the
                                 nearest cent with one-half cent being rounded
                                 upwards.

Index Closing Value...........   The Index Closing Value, on any Trading Day,
                                 will equal the closing value of the S&P 500
                                 Index or any Successor Index at the regular
                                 official weekday close of trading on such
                                 Trading Day.  See "Discontinuance of the S&P
                                 500 Index; Alteration of Method of
                                 Calculation."

                                 References herein to the S&P 500 Index will
                                 be deemed to include any Successor Index,
                                 unless the context requires otherwise.

Initial Average Index Value...   The Initial Average Index Value will equal
                                 the arithmetic average of the  Index Closing
                                 Values on each of the Initial Index
                                 Determination Dates.  The Initial Average
                                 Index Value will be calculated on the last
                                 Initial Index Determination Date by the
                                 Calculation Agent.  The Calculation Agent
                                 will provide information as to the Initial
                                 Average Index Value upon written request by
                                 any holder of the Notes on any  Business Day
                                 after the last Initial Index Determination
                                 Date.

Initial Index Determination      The Initial Index Determination Dates will
  Date........................   be July     , 1997, October         , 1997
                                 and January      , 1998 or, if any such date
                                 is not a Trading Day, the next succeeding
                                 Trading Day, unless there is a Market
                                 Disruption Event on any such Trading Day.  If
                                 a Market Disruption Event occurs on any such
                                 Trading Day, such Determination Date will be
                                 the immediately succeeding Trading Day during
                                 which no Market Disruption Event shall have
                                 occurred; provided that if a Market
                                 Disruption Event has occurred on each of the
                                 five Trading Days immediately succeeding any
                                 of July     , 1997, October     , 1997 or
                                 January     , 1997, as the case may be, then
                                 (i) such fifth succeeding Trading Day will be
                                 deemed to be the relevant Initial Index
                                 Determination Date, notwithstanding the
                                 occurrence of a Market Disruption Event on
                                 such day and (ii) with respect to any such
                                 fifth Trading Day on which a Market
                                 Disruption Event occurs, the Calculation
                                 Agent will determine the value of the S&P 500
                                 Index on such fifth Trading Day in accordance
                                 with the formula for and method of
                                 calculating the S&P 500 Index last in effect
                                 prior to the commencement of the Market
                                 Disruption Event, using the closing price
                                 (or, if trading in the relevant securities
                                 has been materially suspended or materially
                                 limited, its good faith estimate of the
                                 closing price that would have prevailed but
                                 for such suspension or limitation) on such
                                 Trading Day of each security most recently
                                 comprising the S&P 500 Index.

Final Average Index Value.....   The Final Average Index Value will equal
                                 either (i) the arithmetic average of the
                                 Index Closing Values on each of the Final
                                 Index Determination Dates as calculated on
                                 the Final Calculation Date by the Calculation
                                 Agent or  (ii) if the holder of 100% of the
                                 outstanding Notes completes and delivers to
                                 the Company and the Calculation Agent an
                                 Official Equity Stop Notice (in the form of
                                 Annex A attached hereto) prior to 11:00 a.m.
                                 New York City time on any Trading Day on or
                                 prior to July    , 2003 (the "Equity Stop
                                 Date"), the Index Closing Value on such
                                 Equity Stop Date (the "Equity Stop Option"),
                                 determined as if the Equity Stop Date were
                                 a Final Index Determination Date.

                                 If (a) a Market Disruption Event has
                                 occurred on any Equity Stop Date or (b) any
                                 notice to elect the Equity Stop Option is
                                 received by the Company after 11:00 a.m. New
                                 York City time on any Trading Day on or
                                 prior to July    , 2003 so that the Equity
                                 Stop Date is the scheduled Trading Day
                                 following the day on which such notice is
                                 received, the Final Average Index Value will
                                 be the Index Closing Value on the next
                                 succeeding Trading Day on which there is no
                                 Market Disruption Event.  If there are no
                                 such Trading Days prior to the Final
                                 Calculation Date, the Calculation Agent will
                                 determine the value of the S&P 500 Index in
                                 accordance with the formula for and method of
                                 calculating the S&P 500 Index last in effect
                                 prior to the commencement of the Market
                                 Disruption Event, using the closing price
                                 (or, if trading in the relevant securities
                                 has been materially suspended or materially
                                 limited, its good faith estimate of the
                                 closing price that would have prevailed but
                                 for such suspension or limitation) on the
                                 Equity Stop Date of each security most
                                 recently comprising the S&P 500 Index.

                                 If any notice to elect the Equity Stop Option
                                 is received by the Company after 11:00 a.m.
                                 New York City time on  July     , 2003, the
                                 Final Average Index Value will be calculated
                                 in accordance with clause (i) of the second
                                 preceding paragraph.

                                 Notwithstanding election by a holder of the
                                 Equity Stop Option, the Supplemental
                                 Redemption Amount will be calculated on the
                                 Final Calculation Date and the Maturity
                                 Redemption Amount will be paid on the
                                 Maturity Date.

Final Index Determination Dates  The Final Index Determination Dates will be
                                 July   , 2003, October       , 2003, January
                                 , 2004, April     , 2004 and July    , 2004
                                 or, if any such date is not a Trading Day,
                                 the next succeeding Trading Day, unless there
                                 is a Market Disruption Event on any such
                                 Trading Day.  If a Market Disruption Event
                                 occurs on any such Trading Day, such Final
                                 Index Determination Date will be the
                                 immediately succeeding Trading Day during
                                 which no Market Disruption Event shall have
                                 occurred; provided that if a Market
                                 Disruption Event has occurred on each of the
                                 five Trading Days immediately succeeding any
                                 of July    , 2003, October   , 2003, January
                                   , 2004, April   , 2004 or July  , 2004, as
                                 the case may be, then (i) such fifth
                                 succeeding Trading Day will be deemed to be
                                 the relevant Final Index Determination Date,
                                 notwithstanding the occurrence of a Market
                                 Disruption Event on such day and (ii) with
                                 respect to any such fifth Trading Day on
                                 which a Market Disruption Event occurs, the
                                 Calculation Agent will determine the value of
                                 the S&P 500 Index on such fifth Trading Day
                                 in accordance with the formula for and method
                                 of calculating the S&P 500 Index last in
                                 effect prior to the commencement of the
                                 Market Disruption Event, using the closing
                                 price (or, if trading in the relevant
                                 securities has been materially suspended or
                                 materially limited, its good faith estimate
                                 of the closing price that would have
                                 prevailed but for such suspension or
                                 limitation) on such Trading Day of each
                                 security most recently comprising the S&P 500
                                 Index.

                                 Notwithstanding the foregoing, no Final Index
                                 Determination Date will be later than the
                                 Final Calculation Date.  If such Final
                                 Calculation Date is a Final Index
                                 Determination Date but is not a Trading Day
                                 or if there is a Market Disruption Event on
                                 such Final Calculation Date, the Calculation
                                 Agent will determine the value of the S&P 500
                                 Index on such Final Calculation Date in
                                 accordance with clause (ii) of the preceding
                                 paragraph.

Trading Day...................   A day on which trading is generally conducted
                                 (i) on the New York Stock Exchange ("NYSE"),
                                 the American Stock Exchange, Inc. ("AMEX")
                                 and the NASDAQ National Market ("NASDAQ
                                 NMS"), (ii) on the Chicago Mercantile
                                 Exchange and (iii) on the Chicago Board of
                                 Options Exchange, as determined by the
                                 Calculation Agent.

Final Calculation Date........   The Final Calculation Date will  be the
                                 second Business Day prior to the Maturity
                                 Date.

Market Disruption Event.......   "Market Disruption Event" means, with respect
                                 to the S&P 500 Index:

                                    (i) a suspension, absence or material
                                    limitation of trading of 100 or more of
                                    the securities included in the S&P 500
                                    Index on the primary market for such
                                    securities for more than two hours of
                                    trading or during the one-half hour period
                                    preceding the close of trading in such
                                    market; or the suspension, absence or
                                    material limitation of trading on the
                                    primary market for trading in futures or
                                    options contracts related to the S&P 500
                                    Index during the one-half hour period
                                    preceding the close of trading in the
                                    applicable market, in each case as
                                    determined by the Calculation Agent in its
                                    sole discretion; and

                                    (ii) a determination by the Calculation
                                    Agent in its sole discretion that the
                                    event described in clause (i) above
                                    materially interfered with the ability of
                                    the Company or any of its affiliates to
                                    unwind all or a material portion of the
                                    hedge with respect to the Notes.

                                 For purposes of determining whether a Market
                                 Disruption Event has occurred:  (1) a
                                 limitation on the hours or number of days of
                                 trading will not constitute a Market
                                 Disruption Event if it results from an
                                 announced change in the regular business
                                 hours of the relevant exchange or market, (2)
                                 a decision to permanently discontinue trading
                                 in the relevant futures or options contract
                                 will not constitute a Market Disruption
                                 Event, (3) limitations pursuant to New York
                                 Stock Exchange Rule 80A (or any applicable
                                 rule or regulation enacted or promulgated by
                                 the NYSE, any other self-regulatory
                                 organization or the Securities and Exchange
                                 Commission of similar scope as determined by
                                 the Calculation Agent) on trading during
                                 significant market fluctuations will
                                 constitute a Market Disruption Event, (4) a
                                 suspension of trading in a futures or options
                                 contract on the S&P 500 Index by the primary
                                 securities market related to such contract by
                                 reason of (a) a price change exceeding limits
                                 set by such exchange or market, (b) an
                                 imbalance of orders relating to such
                                 contracts or (c) a disparity in bid and ask
                                 quotes relating to such contracts will
                                 constitute a suspension or material
                                 limitation of trading in futures or options
                                 contracts related to the S&P 500 Index and
                                 (5) a "suspension, absence or material
                                 limitation of trading" on the primary
                                 market on which futures or options
                                 contracts related to the S&P 500 Index are
                                 traded will not include any time when such
                                 market is itself closed for trading under
                                 ordinary circumstances.

Alternative Determination Date
in case of an Event of Default   In case an Event of Default with respect to
                                 any Notes shall have occurred and be
                                 continuing, the amount declared due and
                                 payable upon any acceleration of the Notes
                                 will be determined by the Calculation
                                 Agent and will be equal to Par plus the
                                 Supplemental Redemption Amount, if any,
                                 determined as though each Initial Index
                                 Determination Date and each Final Index
                                 Determination Date scheduled to occur on
                                 or after such date of acceleration were
                                 the date of acceleration.  The Equity Stop
                                 Option will not be available upon an Event
                                 of Default with respect to the Notes.

Calculation Agent.............   Morgan Stanley & Co.  Incorporated ("MS &
                                 Co.")

                                 All determinations made by the Calculation
                                 Agent will be at the sole discretion of the
                                 Calculation Agent and will, in the absence of
                                 manifest error, be conclusive for all
                                 purposes and binding on the Company and
                                 holders of the Notes.

                                 Because the Calculation Agent is an affiliate
                                 of the Company, potential conflicts of
                                 interest may exist between the Calculation
                                 Agent and the holders of the Notes, including
                                 with respect to certain determinations and
                                 judgments that the Calculation Agent must
                                 make in determining the Initial Average
                                 Index Value and the Final Average Index
                                 Value or whether a Market Disruption Event
                                 has occurred.  See "Discontinuance of the
                                 S&P 500 Index;  Alteration of Method of
                                 Calculation" below and "Market Disruption
                                 Event" above.  MS & Co. is obligated to
                                 carry out its duties and functions as
                                 Calculation Agent in good faith and using
                                 its reasonable judgment.

Risk Factors..................   An investment in the Notes entails
                                 significant risks not associated with similar
                                 investments in a conventional security,
                                 including the following.

                                 If the Final Average Index Value is equal
                                 to or less than the Initial Average Index
                                 Value, the holders of the Notes will
                                 receive only the par amount of each Note
                                 at maturity.

                                 There will be no periodic payments of
                                 interest on the Notes as there would be on a
                                 conventional fixed-rate debt security having
                                 the same maturity date as the Notes and
                                 issued by the Company on the Original Issue
                                 Date. Because the Supplemental Redemption
                                 Amount may be equal to zero, the effective
                                 yield to maturity may be less than that which
                                 would be payable on such a conventional
                                 fixed-rate debt security.

                                 The return of only the par amount of a Note
                                 at maturity may not compensate the holder for
                                 any opportunity cost implied by inflation and
                                 other factors relating to the time value of
                                 money.  The percentage appreciation of the
                                 S&P 500 Index based on the Final Average
                                 Index Value over the Initial Average Index
                                 Value does not reflect the payment of
                                 dividends on the stocks underlying the S&P
                                 500 Index.  Therefore, the yield to maturity
                                 based on the Final Average Index Value
                                 relative to the Initial Average Index Value
                                 will not be the same yield as would be
                                 produced if such underlying stocks were
                                 purchased and held for a similar period.

                                 The Notes will not be listed on any exchange.
                                 There can be no assurance as to whether there
                                 will be a secondary market in the Notes or if
                                 there were to be such a secondary market,
                                 whether such market would be liquid or
                                 illiquid.  It is expected that the secondary
                                 market for the Notes will be affected by the
                                 creditworthiness of the Company and by a
                                 number of factors, including, but not limited
                                 to, the volatility of the S&P 500 Index,
                                 dividend rates on the stocks underlying
                                 the S&P 500 Index, the time remaining to
                                 the Final Calculation Date and to the
                                 maturity of the Notes and market interest
                                 rates.  In addition, the Initial Average
                                 Index Value and the Final Average Index
                                 Value depends on a number of interrelated
                                 factors, including economic, financial and
                                 political events, over which the Company
                                 has no control.  The value of the Notes
                                 prior to maturity is expected to depend
                                 primarily on market interest rates and the
                                 extent of the appreciation or depreciation
                                 of the S&P 500 Index from the Initial
                                 Average Index Value through the later of
                                 the last Final Index Determination Date
                                 and the Equity Stop Date.  The price at
                                 which a holder will be able to sell the
                                 Notes prior to maturity may be at a
                                 discount, which could be substantial, from
                                 the par amount thereof, if, at such time,
                                 the S&P 500 Index or the Final Average
                                 Index Value, if determined, is below,
                                 equal to or not sufficiently above the
                                 Initial Average Index Value.

                                 The historical S&P 500 Index values should
                                 not be taken as an indication of the future
                                 performance of the S&P 500 Index during the
                                 term of the Notes.  While the trading prices
                                 of the stocks underlying the S&P 500 Index
                                 will determine the value of the S&P 500
                                 Index, it is impossible to predict whether
                                 the value of the S&P 500 Index will rise
                                 or fall.  Trading prices of the stocks
                                 underlying the S&P 500 Index will be
                                 influenced by both the complex and
                                 interrelated political, economic,
                                 financial and other factors that can
                                 affect the capital markets generally and
                                 the equity trading markets on which the
                                 underlying stocks are traded, and by
                                 various circumstances that can influence
                                 the values of the underlying stocks in a
                                 specific market segment or a particular
                                 underlying stock.

                                 The policies of S&P concerning additions,
                                 deletions and substitutions of the stocks
                                 underlying the S&P 500 Index and the manner
                                 in which S&P takes account of certain changes
                                 affecting such underlying stocks may affect
                                 the value of the S&P 500 Index.  The policies
                                 of S&P with respect to the calculation of the
                                 S&P 500 Index could also affect the value of
                                 the S&P 500 Index.  S&P may discontinue or
                                 suspend calculation or dissemination of the
                                 S&P 500 Index.  Any such actions could affect
                                 the value of the Notes.  See "S&P 500 Index"
                                 and "Discontinuance of the S&P 500 Index;
                                 Alteration of Method of Calculation" below.

                                 Because the Calculation Agent is an affiliate
                                 of the Company, potential conflicts of
                                 interest may exist between the Calculation
                                 Agent and the holders of the Notes, including
                                 with respect to certain determinations and
                                 judgments that the Calculation Agent must
                                 make in determining the Initial Average
                                 Index Value, the Final Average Index Value
                                 or whether a Market Disruption Event has
                                 occurred.  See "Discontinuance of the S&P
                                 500 Index;  Alteration of Method of
                                 Calculation" below and "Market Disruption
                                 Event" above.  MS & Co., as a registered
                                 broker-dealer, is required to maintain
                                 policies and procedures regarding the
                                 handling and use of confidential
                                 proprietary information, and such policies
                                 and procedures will be in effect
                                 throughout the term of the Notes to
                                 restrict the use of information relating
                                 to the calculation of the Initial Average
                                 Index Values and the Final Average Index
                                 Values that the Calculation Agent may be
                                 required to make prior to its
                                 dissemination.  MS & Co. is obligated to
                                 carry out its duties and functions as
                                 Calculation Agent in good faith and using
                                 its reasonable judgment.

                                 It is suggested that prospective investors
                                 who consider purchasing the Notes should
                                 reach an investment decision only after
                                 carefully considering the suitability of the
                                 Notes in light of their particular
                                 circumstances.

                                 Investors should also consider the tax
                                 consequences of investing in the Notes.  See
                                 "United States Federal Taxation" below.

S&P 500 Index.................   The S&P 500 Index is published by S&P and is
                                 intended to provide a performance benchmark
                                 for the U.S. equity markets.  The calculation
                                 of the value of the S&P 500 Index (discussed
                                 below in further detail) is based on the
                                 relative value of the aggregate Market Value
                                 (as defined below) of the common stocks of
                                 500 companies (the "Component Stocks") as of
                                 a particular time as compared to the
                                 aggregate average Market Value of the common
                                 stocks of 500 similar companies during the
                                 base period of the years 1941 through 1943.
                                 The "Market Value" of any Component Stock is
                                 the product of the market price per share and
                                 the number of the then outstanding shares of
                                 such Component Stock.  The 500 companies are
                                 not the 500 largest companies listed on the
                                 NYSE and not all 500 companies are listed on
                                 such exchange.  S&P chooses companies for
                                 inclusion in the S&P 500 Index with an aim of
                                 achieving a distribution by broad industry
                                 groupings that approximates the distribution
                                 of these groupings in the common stock
                                 population of the U.S. equity market.  S&P
                                 may from time to time, in its sole
                                 discretion, add companies to, or delete
                                 companies from, the S&P 500 Index to achieve
                                 the objectives stated above.  Relevant
                                 criteria employed by S&P include the
                                 viability of the particular company, the
                                 extent to which that company represents the
                                 industry group to which it is assigned, the
                                 extent to which the company's common stock is
                                 widely-held and the Market Value and trading
                                 activity of the common stock of that company.

                                 The S&P 500 Index is calculated using a
                                 base-weighted aggregate methodology: the
                                 level of the Index reflects the total Market
                                 Value of all 500 Component Stocks relative to
                                 the S&P 500 Index's base period of 1941-43
                                 (the "Base Period").

                                 An indexed number is used to represent the
                                 results of this calculation in order to make
                                 the value easier to work with and track over
                                 time.

                                 The actual total Market Value of the
                                 Component Stocks during the Base Period has
                                 been set equal to an indexed value of 10.
                                 This is often indicated by the notation
                                 1941-43=10.  In practice, the daily
                                 calculation of the S&P 500 Index is computed
                                 by dividing the total Market Value of the
                                 Component Stocks by a number called the Index
                                 Divisor.  By itself, the Index Divisor is an
                                 arbitrary number.  However, in the context of
                                 the calculation of the S&P 500 Index, it is
                                 the only link to the original base period
                                 value of the Index.  The Index Divisor keeps
                                 the Index comparable over time and is the
                                 manipulation point for all adjustments to the
                                 S&P 500 Index ("Index Maintenance").

                                 Index maintenance includes monitoring and
                                 completing the adjustments for company
                                 additions and deletions, share changes, stock
                                 splits, stock dividends, and stock price
                                 adjustments due to company restructurings or
                                 spinoffs.

                                 To prevent the value of the Index from
                                 changing due to corporate actions, all
                                 corporate actions which affect the total
                                 Market Value of the Index require an Index
                                 Divisor adjustment.  By adjusting the Index
                                 Divisor for the change in total Market Value,
                                 the value of the S&P 500 Index remains
                                 constant.  This helps maintain the value of
                                 the Index as an accurate barometer of stock
                                 market performance and ensures that the
                                 movement of the Index does not reflect the
                                 corporate actions of individual companies in
                                 the Index.  All Index Divisor adjustments are
                                 made after the close of trading and after the
                                 calculation of the closing value of the S&P
                                 500 Index.  Some corporate actions, such as
                                 stock splits and stock dividends, require
                                 simple changes in the common shares
                                 outstanding and the stock prices of the
                                 companies in the Index and do not require
                                 Index Divisor adjustments.

                                 The table below summarizes the types of S&P
                                 500 Index maintenance adjustments and
                                 indicates whether or not an Index Divisor
                                 adjustment is required.

                                                              Divisor
        Type of                                              Adjustment
    Corporate Action             Adjustment Factor            Required
    ----------------             -----------------           -----------

Stock split                 Shares Outstanding                   No
     (i.e. 2x1)             multiplied by 2;
                            Stock Price divided by 2

Share issuance              Shares Outstanding plus             Yes
     (i.e. Change > 5%)     newly issued Shares

Share repurchase            Shares Outstanding minus            Yes
     (i.e. Change > 5%)     Repurchased Shares

Special cash                Share Price minus Special           Yes
dividends                   Dividend

Company change              Add new company Market              Yes
                            Value minus old company
                            Market Value

Rights offering             Price of parent company             Yes
                            minus

                              Price of Rights
                            ( --------------- )
                                Right Ratio

Spinoffs                    Price of parent company             Yes
                            minus

                               Price of Spinoff Co.
                             ( -------------------- )
                               Share Exchange Ratio

                                 Stock splits and stock dividends do not
                                 affect the Index Divisor of the S&P 500
                                 Index, because following a split or dividend
                                 both the stock price and number of shares
                                 outstanding are adjusted by S&P so that there
                                 is no change in the Market Value of the
                                 Component Stock.  All stock split and
                                 dividend adjustments are made after the close
                                 of trading on the day before the ex-date.

                                 Each of the corporate events exemplified in
                                 the table requiring an adjustment to the
                                 Index Divisor has the effect of altering the
                                 Market Value of the Component Stock and
                                 consequently of altering the aggregate
                                 Market Value of the Component Stocks (the
                                 "Post-Event Aggregate Market Value").  In
                                 order that the level of the Index (the
                                 "Pre-Event Index Value") not be affected
                                 by the altered Market Value (whether
                                 increase or decrease) of the affected
                                 Component Stock, a new Index Divisor ("New
                                 Divisor") is derived as follows:


                 Post-Event Aggregate Market Value
                 ---------------------------------- = Pre-Event Index Value
                           New Divisor

                                  Post-Event Aggregate Market Value
                 New Divisor =  ----------------------------------------
                                        Pre-Event Index Value

                                 A large part of the S&P 500 Index maintenance
                                 process involves tracking the changes in the
                                 number of shares outstanding of each of the
                                 S&P 500 Index companies.  Four times a year,
                                 on a Friday close to the end of each calendar
                                 quarter, the share totals of companies in the
                                 Index are updated as required by any changes
                                 in the number of shares outstanding.  After
                                 the totals are updated, the Index Divisor is
                                 adjusted to compensate for the net change in
                                 the total Market Value of the Index.  In
                                 addition, any changes over 5% in the current
                                 common shares outstanding for the S&P 500
                                 Index companies are carefully reviewed on a
                                 weekly basis, and when appropriate, an
                                 immediate adjustment is made to the Index
                                 Divisor.

Discontinuance of the
S&P 500 Index; Alteration of
  Method of Calculation.......   If S&P discontinues publication of the S&P
                                 500 Index and S&P or another entity publishes
                                 a successor or substitute index that the
                                 Calculation Agent determines, in its sole
                                 discretion, to be comparable to the
                                 discontinued S&P 500 Index (such index being
                                 referred to herein as a "Successor Index"),
                                 then each subsequent Index Closing Value will
                                 be determined by reference to the value of
                                 such Successor Index at the close of trading
                                 on the NYSE, the AMEX, NASDAQ NMS or the
                                 relevant exchange or market for the Successor
                                 Index on such  Initial Index Determination
                                 Date, Final Index Determination Date or
                                 Equity Stop Date, as the case may be.

                                 Upon any selection by the Calculation Agent
                                 of a Successor Index, the Calculation Agent
                                 will cause written notice thereof to be
                                 furnished to the Trustee, to the Company and
                                 to the holders of the Notes within three
                                 Trading Days of such selection.

                                 If S&P discontinues publication of the S&P
                                 500 Index prior to, and such discontinuance
                                 is continuing on, any Initial Index
                                 Determination Date, Final Index Determination
                                 Date or Equity Stop Date and the Calculation
                                 Agent determines that no Successor Index is
                                 available at such time, then on such Initial
                                 Index Determination Date, Final Index
                                 Determination Date or Equity Stop Date, the
                                 Calculation Agent will determine the Index
                                 Closing Value that would be used in computing
                                 the Supplemental Redemption Amount on such
                                 Initial Index Determination Date, Final Index
                                 Determination Date or Equity Stop Date.  The
                                 Index Closing Value will be computed by the
                                 Calculation Agent in accordance with the
                                 formula for and method of calculating the S&P
                                 500 Index last in effect prior to such
                                 discontinuance, using the closing price (or,
                                 if trading in the relevant securities has
                                 been materially suspended or materially
                                 limited, its good faith estimate of the
                                 closing price that would have prevailed but
                                 for such suspension or limitation) on such
                                 Initial Index Determination Date, Final Index
                                 Determination Date or Equity Stop Date of
                                 each security most recently comprising the
                                 S&P 500 Index. Notwithstanding these
                                 alternative arrangements, discontinuance of
                                 the publication of the S&P 500 Index may
                                 adversely affect the value of the Notes.

                                 If at any time the method of calculating the
                                 S&P 500 Index or a Successor Index, or the
                                 value thereof, is changed in a material
                                 respect, or if the S&P 500 Index or a
                                 Successor Index is in any other way modified
                                 so that such index does not, in the opinion
                                 of the Calculation Agent, fairly represent
                                 the value of the S&P 500 Index or such
                                 Successor Index had such changes or
                                 modifications not been made, then, from and
                                 after such time, the Calculation Agent will,
                                 at the close of business in New York City on
                                 each subsequent Initial Index
                                 Determination Date, Final Index
                                 Determination Date or Equity Stop Date, as
                                 the case may be, make such calculations
                                 and adjustments as, in the good faith
                                 judgment of the Calculation Agent, may be
                                 necessary in order to arrive at a value of
                                 a stock index comparable to the S&P 500
                                 Index or such Successor Index, as the case
                                 may be, as if such changes or
                                 modifications had not been made, and
                                 calculate the Supplemental Redemption
                                 Amount with reference to the S&P 500 Index
                                 or such Successor Index, as adjusted.
                                 Accordingly, if the method of calculating
                                 the S&P 500 Index or a Successor Index is
                                 modified so that the value of such index
                                 is a fraction of what it would have been
                                 if it had not been modified (e.g., due to
                                 a split in the index), then the
                                 Calculation Agent will adjust such index
                                 in order to arrive at a value of the S&P
                                 500 Index or such Successor Index as if it
                                 had not been modified (e.g., as if such
                                 split had not occurred).

Public Information............   All disclosure contained in this Pricing
                                 Supplement regarding the S&P 500 Index,
                                 including, without limitation, its make-up,
                                 method of calculation and changes in its
                                 components, are derived from publicly
                                 available information prepared by S&P.
                                 Neither the Company nor the Agent take any
                                 responsibility for the accuracy or
                                 completeness of such information.

Historical Information........   The following table sets forth the high and
                                 low daily closing values, as well as
                                 end-of-quarter closing values, of the S&P 500
                                 Index for each quarter in the period from
                                 January 1, 1992 through June 26, 1997.  The
                                 Index Closing Values listed below were
                                 obtained from Bloomberg Financial Markets.
                                 The Company believes all such information to
                                 be accurate.  The historical values of the
                                 S&P 500 Index should not be taken as an
                                 indication of future performance, and no
                                 assurance can be given that the S&P 500 Index
                                 will increase sufficiently to cause the
                                 holders of the Notes to receive any
                                 Supplemental Redemption Amount.


                                      Daily Index Closing Values
                                      --------------------------

                                                                    Period
                                  High               Low              End
                                  ----               ---              ---

1992
       First Quarter             420.77             403.00           403.69
      Second Quarter             418.49             394.50           408.14
       Third Quarter             425.27             409.16           417.80
      Fourth Quarter             441.28             402.66           435.71
1993
       First Quarter             456.34             429.05           451.67
      Second Quarter             453.85             433.54           450.53
       Third Quarter             463.56             441.43           458.93
      Fourth Quarter             470.94             457.48           466.45
1994
       First Quarter             482.00             445.55           445.76
      Second Quarter             462.37             438.92           444.27
       Third Quarter             476.07             446.13           462.71
      Fourth Quarter             473.77             445.45           459.27
1995
       First Quarter             503.90             459.11           500.71
      Second Quarter             551.07             501.85           544.75
       Third Quarter             586.77             547.09           584.41
      Fourth Quarter             621.69             576.72           615.93
1996
       First Quarter             661.45             598.48           645.50
      Second Quarter             678.51             631.18           670.63
       Third Quarter             687.31             626.65           687.31
      Fourth Quarter             757.03             689.08           740.74
1997
       First Quarter             816.29             737.01           757.12
      Second Quarter
           (through
      June 26, 1997)             898.70             737.65          883.68


Use of Proceeds and Hedging...   The net proceeds to be received by the
                                 Company from the sale of the Notes will be
                                 used for general corporate purposes and, in
                                 part, by the Company or one or more of its
                                 affiliates in connection with hedging the
                                 Company's obligations under the Notes,
                                 including hedging market risks associated
                                 with the Supplemental Redemption Amount. On
                                 or prior to the date of this Pricing
                                 Supplement, the Company, through its
                                 subsidiaries and others, may hedge some or
                                 all of its anticipated exposure in connection
                                 with the Notes by the purchase and sale of
                                 exchange traded and over the counter options
                                 on the S&P 500 Index, individual stocks
                                 included in the S&P 500 Index, futures
                                 contracts on the S&P 500 Index and options on
                                 such futures contracts or by taking positions
                                 in any other instruments that it may wish to
                                 use in connection with such hedging.
                                 Although the Company has no reason to believe
                                 that its hedging activity will have a
                                 material impact on the price of such options,
                                 stocks, futures contracts, and options on
                                 futures contracts, there can be no assurance
                                 that the Company will not affect such prices
                                 as a result of its hedging activities.  The
                                 Company, through its subsidiaries, is likely
                                 to modify its hedge position throughout the
                                 life of the Notes, including  on each Initial
                                 Index Determination Date, Final Index
                                 Determination Date or Equity Stop Date, by
                                 purchasing and selling the securities and
                                 instruments listed above and other available
                                 securities and instruments. See also "Use of
                                 Proceeds" in the accompanying Prospectus.

License Agreement.............   S&P and MS & Co. have entered into a
                                 non-exclusive license agreement providing for
                                 the license to MS & Co., and any of its
                                 affiliated or subsidiary companies, in
                                 exchange for a fee, of the right to use the
                                 S&P 500 Index, which is owned and published
                                 by S&P, in connection with certain
                                 securities, including the Notes.

                                 The license agreement between S&P and MS &
                                 Co. provides that the following language must
                                 be set forth in this Pricing Supplement:

                                 The Notes are not sponsored, endorsed, sold
                                 or promoted by S&P.  S&P makes no
                                 representation or warranty, express or
                                 implied, to the holders of the Notes or any
                                 member of the public regarding the
                                 advisability of investing in securities
                                 generally or in the Notes particularly or the
                                 ability of the S&P 500 Index to track general
                                 stock market performance.  S&P's only
                                 relationship to the Company is the licensing
                                 of certain trademarks and trade names of S&P
                                 and of the S&P 500 Index, which is
                                 determined, composed and calculated by S&P
                                 without regard to the Company or the Notes.
                                 S&P has no obligation to take the needs of
                                 the Company or the holders of the Notes into
                                 consideration in determining, composing or
                                 calculating the S&P 500 Index.  S&P is not
                                 responsible for and has not participated in
                                 the determination of the timing of, prices
                                 at, or quantities of the Notes to be issued
                                 or in the determination or calculation of the
                                 equation by which the Notes are to be
                                 converted into cash.  S&P has no obligation
                                 or liability in connection with the
                                 administration, marketing or trading of the
                                 Notes.

                                 S&P DOES NOT GUARANTEE THE ACCURACY AND/OR
                                 THE COMPLETENESS OF THE S&P 500 INDEX OR
                                 ANY DATA INCLUDED THEREIN.  S&P MAKES NO
                                 WARRANTY, EXPRESS OR IMPLIED, AS TO
                                 RESULTS TO BE OBTAINED BY THE COMPANY,
                                 HOLDERS OF THE NOTES, OR ANY OTHER PERSON
                                 OR ENTITY FROM THE USE OF THE S&P INDEX OR
                                 ANY DATA INCLUDED THEREIN IN CONNECTION
                                 WITH THE RIGHTS LICENSED UNDER THE LICENSE
                                 AGREEMENT DESCRIBED HEREIN OR FOR ANY
                                 OTHER USE.  S&P MAKES NO EXPRESS OR
                                 IMPLIED WARRANTIES, AND HEREBY EXPRESSLY
                                 DISCLAIMS ALL WARRANTIES OF
                                 MERCHANTABILITY OR FITNESS FOR A
                                 PARTICULAR PURPOSE OR USE WITH RESPECT TO
                                 THE S&P 500 INDEX OR ANY DATA INCLUDED
                                 THEREIN.  WITHOUT LIMITING ANY OF THE
                                 FOREGOING, IN NO EVENT SHALL S&P HAVE ANY
                                 LIABILITY FOR ANY SPECIAL, PUNITIVE,
                                 INDIRECT OR CONSEQUENTIAL DAMAGES
                                 (INCLUDING LOST PROFITS), EVEN IF NOTIFIED
                                 OF THE POSSIBILITY OF SUCH DAMAGES.

                                 "Standard & Poor's[Registered]",
                                 "S&P[Registered]", "S&P 500[Registered]",
                                 "Standard & Poor's 500," and "500" are
                                 trademarks of McGraw-Hill, Inc. and have been
                                 licensed for use by MS & Co.

United States Federal Taxation   The Notes are Notes Linked to an Index and
                                 investors should refer to the discussion
                                 under "United States Federal
                                 Taxation--Notes--Notes Linked to Commodity
                                 Prices, Single Securities, Baskets of
                                 Securities or Indices" and "United States
                                 Federal Taxation--Notes--Optionally
                                 Exchangeable Notes" in the accompanying
                                 Prospectus Supplement.  In connection with
                                 the discussion thereunder, the Company has
                                 determined that the "comparable yield" is
                                 an annual rate of %, compounded semi-
                                 annually.  Based on the Company's
                                 determination of the comparable yield, the
                                 "projected payment schedule" for a Note
                                 (assuming a par amount of $1,000 or with
                                 respect to each integral multiple thereof)
                                 consists of a projected amount due at
                                 maturity, equal to $        (the "Projected
                                 Amount").

                                 THE COMPARABLE YIELD, THE PROJECTED PAYMENT
                                 SCHEDULE AND THE PROJECTED AMOUNT ARE NOT
                                 PROVIDED FOR ANY PURPOSE OTHER THAN THE
                                 DETERMINATION OF UNITED STATES HOLDERS'
                                 INTEREST ACCRUALS AND ADJUSTMENTS IN RESPECT
                                 OF THE NOTES, AND THE COMPANY MAKES NO
                                 REPRESENTATION REGARDING THE ACTUAL AMOUNTS
                                 OF THE PAYMENTS ON A NOTE.

                                                                       ANNEX A



                          OFFICIAL EQUITY STOP NOTICE

                                          Dated: [On or before July    , 2003]



Morgan Stanley, Dean Witter, Discover & Co.
1585 Broadway
New York, New York 10036



Morgan Stanley & Co. Incorporated, as Calculation Agent
1585 Broadway
New York, New York 10036
(Attn: Lily Lam)
Fax: 212-761-0674



Dear Sirs:



               The undersigned holder of the Medium Term Notes, Series C,
Equity Linked Notes, Due July   , 2004 of Morgan Stanley, Dean Witter,
Discover & Co. (the "Notes") hereby represents that such holder owns directly
or indirectly the principal amount of the Notes recorded in the space provided
below such holder's signature, which must, under the terms of the Notes,
represent 100% of the principal amount of the outstanding Notes for this
Official Equity Stop Notice to be effective and irrevocably elects to exercise
the Equity Stop Option as of the date hereof (or, if this letter is received
after 11:00 a.m. on any Trading Day on or prior to July    , 2003, as of the
next Trading Day), subject to the description contained in the Pricing
Supplement dated      , 1997 to the Prospectus Supplement dated June 2, 1997
and the Prospectus dated June 2, 1997 related to Registration Statement No.
333-27919.  Capitalized terms not defined herein have the meanings given to
such terms in the Prospectus Supplement.  Please confirm that the principal
amount recorded in the space below represents 100% of the principal amount of
the outstanding Notes (which confirmation will be evidenced by dating and
acknowledging  receipt of this notice in the place provided below on the date
of receipt and faxing a copy of  to the fax number indicated below).




                              Very truly yours,



                              ---------------------------------
                              [Name of Holder]


                              By:
                                 ------------------------------
                                 [Title]


                              ---------------------------------
                               [Fax No.]



                               $
                              ---------------------------------
                               Principal Amount of Notes Held



Receipt of the above Official Equity Stop Notice is hereby acknowledged

Morgan Stanley, Dean Witter, Discover & Co., as Issuer

Morgan Stanley & Co. Incorporated, as Calculation Agent

By Morgan Stanley & Co. Incorporated, as Calculation Agent


By:
   -------------------------------------------



Date and time of acknowledgment
                               ---------------



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