KEYSTONE AMERICA STATE TAX FREE FUND SERIES II
497, 1995-06-02
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KEYSTONE STATE TAX FREE FUND --
SERIES II
Keystone California Insured Tax Free Fund
Keystone Missouri Tax Free Fund
PROSPECTUS MARCH 31, 1995
AS SUPPLEMENTED JUNE 1, 1995

     Keystone State Tax Free Fund -- Series II (formerly named Keystone  America
State Tax Free Fund -- Series II) (the  "FUND") is a mutual fund that  currently
consists of two  separate  series of shares  evidencing  interests  in different
portfolios of securities  ("Funds"):  the Keystone  California  Insured Tax Free
Fund  ("California  Insured  Fund")  and the  Keystone  Missouri  Tax Free  Fund
("Missouri Tax Free Fund").

     Each of the Funds seeks the highest  possible  current  income  exempt from
federal income taxes,  while  preserving  capital.  In addition,  each Fund also
seeks to provide a maximum  level of income to its  shareholders  that is exempt
from the personal income taxes of the state for which the Fund is named.

     Each Fund invests principally in municipal  obligations exempt from federal
income tax and municipal  obligations  issued by the state for which it is named
and its political subdivisions, agencies and instrumentalities. The Missouri Tax
Free Fund also seeks to hold securities  exempt from Missouri  personal property
taxes. At least 80% of the municipal securities in the California Insured Fund's
portfolio  will be insured as to timely  payment of both principal and interest.
All  securities  not  insured  by the  issuer  will be  insured  by a  qualified
municipal bond insurer.  Each Fund's net asset value per share will fluctuate in
response to changes in the market value of its portfolio securities.



KEYSTONE STATE TAX FREE FUND --
SERIES II
200 BERKELEY STREET, BOSTON, MA 02116-5034
CALL TOLL FREE 1-800-343-2898

     Generally,  each Fund offers three classes of shares.  Information on share
classes and their fee and sales  charge  structures  may be found in each Fund's
fee table, "How to Buy Shares," Alternative Sales Options," "Contingent Deferred
Sales  Charge  and Waiver of Sales  Charges,"  "Distribution  Plans,"  and "FUND
Shares."

     This prospectus  concisely states  information about the FUND and its Funds
that you should know before  investing.  Please read it and retain it for future
reference.

     Additional  information  about  the FUND and its  Funds is  contained  in a
statement of additional  information  dated March 31, 1995, as supplemented June
1, 1995, which has been filed with the Securities and Exchange Commission and is
incorporated  by reference into this  prospectus.  For a free copy, or for other
information  about  the FUND and its  Funds,  write to the  address  or call the
telephone number listed below.

     SHARES OF THE FUNDS ARE NOT DEPOSITS OR  OBLIGATIONS  OF, OR  GUARANTEED OR
ENDORSED  BY,  ANY BANK,  AND SHARES ARE NOT  FEDERALLY  INSURED BY THE  FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE  COMMISSION OR ANY STATE  SECURITIES  COMMISSION NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY STATE  SECURITIES  COMMISSION  PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

<PAGE>

                               TABLE OF CONTENTS
                                                                         Page
  Fee Table .......................................................        3
  Financial Highlights ............................................        5
  The FUND and Its Funds ..........................................       11
  Investment Objectives and Policies ..............................       11
  Investment Restrictions .........................................       14
  Risk Factors ....................................................       15
  Pricing Shares ..................................................       17
  Dividends and Taxes .............................................       18
  FUND Management and Expenses ....................................       20
  How to Buy Shares ...............................................       22
  Alternative Sales Options .......................................       23
  Contingent Deferred Sales Charge and Waiver of Sales Charges ....       27
  Distribution Plans ..............................................       28
  How to Redeem Shares ............................................       29
  Shareholder Services ............................................       31
  Performance Data ................................................       33
  FUND Shares .....................................................       34
  Additional Information ..........................................       34
  Additional Investment Information ...............................      (i)
  Exhibit A .......................................................      A-1
  Exhibit B .......................................................      B-1

<PAGE>

                                   FEE TABLE

              KEYSTONE  CALIFORNIA INSURED TAX FREE FUND 

     The purpose of this fee table is to assist investors in  understanding  the
costs and expenses that an investor in each class of the California Insured Fund
will bear directly or indirectly.  For more complete descriptions of the various
cost  and  expenses,  see  the  following  sections  of this  prospectus:  "FUND
Management  and Expenses";  "How to Buy Shares";  "Alternative  Sales  Options";
"Contingent  Deferred  Sale Charge and Waiver of Sales  Charges";  "Distribution
Plans"; and "Shareholder Services."
<TABLE>
<CAPTION>
                                                       CLASS A SHARES              CLASS B SHARES              CLASS C SHARES
                                                          FRONT END                   BACK END                   LEVEL LOAD
SHAREHOLDER TRANSACTION EXPENSES                         LOAD OPTION               LOAD OPTION<F1>                 OPTION<F2>
                                                       --------------              ---------------             ---------------
<S>                                                     <C>                <C>                              <C>  
Sales Charge .....................................      4.75%<F3>          None                             None
  (as a percentage of offering price)
Contingent Deferred Sales Charge .................      0.00%<F4>          5.00% in the first year          1.00% in the first year
  (as a percentage of the lesser of cost or market                         declining to 1.00% in the sixth  and 0.00% thereafter
  value of shares redeemed)                                                year and 0.00% thereafter
Exchange Fee (per exchange)<F5> ..................      $10.00             $10.00                           $10.00

ANNUAL FUND OPERATING EXPENSES<F6>
  ("After Expense Reimbursements")
  (as a percentage of average net assets)
Management Fees ..................................      0.55%              0.55%                            0.55%
12b-1 Fees .......................................      0.13%              0.88%<F7>                        0.88%<F7>
Other Expenses ...................................      0.00%              0.00%                            0.00%
                                                        ----               ----                             ---- 
Total Fund Operating Expenses ....................      0.68%              1.43%                            1.43%
                                                        ====               ====                             ==== 
<CAPTION>
EXAMPLES<F8>                                                                      1 YEAR       3 YEARS      5 YEARS     10 YEARS
                                                                                  ------       -------      -------     --------
You would pay the following expenses on a $1,000 investment, assuming (1) 5%
annual return and (2) redemption at the end of each period:
<S>                                                                                 <C>          <C>          <C>         <C> 
    Class A ...................................................................     $54          $68          $84         $128
    Class B ...................................................................     $65          $75          $98          N/A
    Class C ...................................................................     $25          $45          $78         $171
You would pay the following expenses on a $1,000 investment, assuming no
redemption at the end of each period:
    Class A ...................................................................     $54          $68          $84         $128
    Class B ...................................................................     $15          $45          $78          N/A
    Class C ...................................................................     $15          $45          $78         $171

AMOUNTS SHOWN IN THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST
OR FUTURE EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
<FN>
<F1> Class B shares  purchased  on or after June 1, 1995  convert  tax free to Class A shares  after eight  years.  See "Class B
     Shares" for more information.
<F2> Class C shares are  available  only through  dealers who have entered into special  distribution  agreements  with Keystone
     Investment Distributors Company, the Funds' principal underwriter.
<F3> The sales charge applied to purchases of Class A shares declines as the amount invested  increases.  See "Alternative Sales
     Options."
<F4> Purchases of Class A shares in the amount of $1,000,000 or more and/or purchases made by certain  qualifying  retirement or
     other plans are not subject to a sales  charge,  but may be subject to a contingent  deferred  sales  charge.  See "Class A
     Shares" and "Contingent Deferred Sales Charge and Waiver of Sales Charges" for an explanation of the charge.
<F5> There is no fee for  exchange  orders  received by the Funds  directly  from an  individual  shareholder  over the Keystone
     Automated Response Line ("KARL"). (For a description of KARL, see "Shareholder Services.")
<F6> Expense  ratios are estimated  for the fiscal year ending  November 30, 1995 after giving  effect to the  reimbursement  by
     Keystone Investment  Management Company  ("Keystone") of expenses in accordance with certain voluntary expense limitations.
     Currently,  Keystone has voluntarily limited expenses of Class A shares to 0.75% of average daily net assets until December
     31, 1995 and has  voluntarily  limited  expenses of Class B and C shares to 1.50% of average  daily net assets of each such
     class until  December  31, 1995.  Keystone is under no  obligation  to maintain  these  limits.  Absent  voluntary  expense
     limitations,  expense  ratios for the California  Insured Fund's fiscal year ending  November 30, 1995 for Class A, B and C
     shares are projected to be approximately 1.54%, 2.29% and 2.29%, respectively.
<F7> The Class B and Class C  Distribution  Plans provide for payments at an annual rate of up to 1.00% of the average daily net
     asset  value of Class B and  Class C  shares;  however,  such  payments,  in  connection  with  certain  voluntary  expense
     limitations,  are  currently  limited to 0.90%.  Long term  shareholders  may pay more than the economic  equivalent of the
     maximum front end sales charges permitted by rules adopted by the National Association of Securities Dealers, Inc.
<F8> The  Securities  and Exchange  Commission  requires use of a 5% annual return  figure for purposes of this example.  Actual
     returns for the Funds may be greater or less than 5%.
</FN>
</TABLE>
<PAGE>

                                   FEE TABLE

                       KEYSTONE  MISSOURI TAX FREE FUND 

     The purpose of this fee table is to assist investors in  understanding  the
costs and expenses  that an investor in each class of the Missouri Tax Free Fund
will bear directly or indirectly.  For more complete descriptions of the various
cost  and  expenses,  see  the  following  sections  of this  prospectus:  "FUND
Management  and Expenses";  "How to Buy Shares";  "Alternative  Sales  Options";
"Contingent  Deferred  Sale Charge and Waiver of Sales  Charges";  "Distribution
Plans"; and "Shareholder Services."

<TABLE>
<CAPTION>
                                                       CLASS A SHARES              CLASS B SHARES              CLASS C SHARES
                                                          FRONT END                   BACK END                   LEVEL LOAD
SHAREHOLDER TRANSACTION EXPENSES                         LOAD OPTION               LOAD OPTION<F1>                 OPTION<F2>
                                                       --------------              ---------------             ---------------
<S>                                                     <C>                <C>                              <C>  
Sales Charge .....................................      4.75%<F3>          None                             None
  (as a percentage of offering price)
Contingent Deferred Sales Charge .................      0.00%<F4>          5.00% in the first year          1.00% in the first year
  (as a percentage of the lesser of cost or market                         declining to 1.00% in the sixth  and 0.00% thereafter
  value of shares redeemed)                                                year and 0.00% thereafter
Exchange Fee (per exchange)<F5> ..................      $10.00             $10.00                           $10.00

ANNUAL FUND OPERATING EXPENSES<F6>
  ("After Expense Reimbursements")
  (as a percentage of average net assets)
Management Fees ..................................      0.55%              0.55%                            0.55%
12b-1 Fees .......................................      0.13%              0.88%<F7>                        0.88%<F7>
Other Expenses ...................................      0.00%              0.00%                            0.00%
                                                        ----               ----                             ---- 
Total Fund Operating Expenses ....................      0.68%              1.43%                            1.43%
                                                        ====               ====                             ==== 
<CAPTION>
EXAMPLES<F8>                                                                      1 YEAR       3 YEARS      5 YEARS     10 YEARS
                                                                                  ------       -------      -------     --------
You would pay the following expenses on a $1,000 investment, assuming (1) 5%
annual return and (2) redemption at the end of each period:
<S>                                                                                 <C>          <C>          <C>         <C> 
    Class A ...................................................................     $54          $68          $84         $128
    Class B ...................................................................     $65          $75          $98          N/A
    Class C ...................................................................     $25          $45          $78         $171
You would pay the following expenses on a $1,000 investment, assuming no
redemption at the end of each period:
    Class A ...................................................................     $54          $68          $84         $128
    Class B ...................................................................     $15          $45          $78          N/A
    Class C ...................................................................     $15          $45          $78         $171
<CAPTION>
AMOUNTS SHOWN IN THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST
OR FUTURE EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
- ---------------
<FN>
<F1> Class B shares  purchased  on or after June 1, 1995  convert  tax free to Class A shares  after eight  years.  See "Class B
     Shares" for more information.
<F2> Class C shares are  available  only through  dealers who have entered into special  distribution  agreements  with Keystone
     Investment Distributors Company, the Funds' principal underwriter.
<F3> The sales charge applied to purchases of Class A shares declines as the amount invested  increases.  See "Alternative Sales
     Options."
<F4> Purchases of Class A shares in the amount of $1,000,000 or more and/or purchases made by certain  qualifying  retirement or
     other plans are not subject to a sales  charge,  but may be subject to a contingent  deferred  sales  charge.  See "Class A
     Shares" and "Contingent Deferred Sales Charge and Waiver of Sales Charges" for an explanation of the charge.
<F5> There is no fee for  exchange  orders  received by the Funds  directly  from an  individual  shareholder  over the Keystone
     Automated Response Line ("KARL"). (For a description of KARL, see "Shareholder Services.")
<F6> Expense  ratios are estimated  for the fiscal year ending  November 30, 1995 after giving  effect to the  reimbursement  by
     Keystone Investment  Management Company  ("Keystone") of expenses in accordance with certain voluntary expense limitations.
     Currently,  Keystone has voluntarily limited expenses of Class A shares to 0.75% of average daily net assets until December
     31, 1995 and has  voluntarily  limited  expenses of Class B and C shares to 1.50% of average  daily net assets of each such
     class until  December  31, 1995.  Keystone is under no  obligation  to maintain  these  limits.  Absent  voluntary  expense
     limitations,  expense  ratios for the  Missouri Tax Free Fund's  fiscal year ending  November 30, 1995 for Class A, B and C
     shares are projected to be approximately 1.54%, 2.29% and 2.29%, respectively.
<F7> The Class B and Class C  Distribution  Plans provide for payments at an annual rate of up to 1.00% of the average daily net
     asset  value of Class B and  Class C  shares;  however,  such  payments,  in  connection  with  certain  voluntary  expense
     limitations,  are  currently  limited to 0.90%.  Long term  shareholders  may pay more than the economic  equivalent of the
     maximum front end sales charges permitted by rules adopted by the National Association of Securities Dealers, Inc.
<F8> The  Securities  and Exchange  Commission  requires use of a 5% annual return  figure for purposes of this example.  Actual
     returns for the Funds may be greater or less than 5%.
</FN>
</TABLE>
<PAGE>

                             FINANCIAL HIGHLIGHTS

                  KEYSTONE CALIFORNIA INSURED TAX FREE FUND
                                CLASS A SHARES

               (For a share outstanding throughout the period)

     The following table contains important  financial  information with respect
to the  California  Insured  Tax Free  Fund and has been  audited  by KPMG  Peat
Marwick LLP, the FUND's  independent  auditors.  The table appears in the FUND's
Annual  Report  and  should be read in  conjunction  with the  FUND's  financial
statements and related notes,  which also appear,  together with the independent
auditors' report, in the FUND's Annual Report. The FUND's financial  statements,
related notes, and independent auditors' report are included in the statement of
additional  information.  Additional information about the FUND's performance is
contained in its Annual  Report,  which will be made  available upon request and
without charge.

                                                              FEBRUARY 1, 1994
                                                              (COMMENCEMENT OF
                                                               OPERATIONS) TO
                                                                NOVEMBER 30,
                                                                    1994
                                                              ----------------
NET ASSET VALUE, BEGINNING OF PERIOD .......................     $10.000
                                                                 -------
Income from investment operations
Investment income -- net ...................................       0.439
Realized gains (losses) on investments -- net ..............      (1.302)
                                                                 -------
Total from investment operations ...........................      (0.863)
                                                                 -------
Less distributions
Dividends from investment income -- net ....................      (0.437)
                                                                 -------
Total distributions ........................................      (0.437)
                                                                 -------
NET ASSET VALUE, END OF PERIOD .............................     $ 8.700
                                                                 =======
TOTAL RETURN ...............................................      (8.78%)(b)
RATIOS/SUPPLEMENTAL DATA
Ratios to average net assets:
  Operating and management expenses (a) ....................       0.41%(c)
  Investment income -- net .................................       5.53%(c)
  Portfolio turnover rate ..................................        104%
Net assets, end of period (thousands) ......................     $ 3,006

(a) Figures are net of the expense  reimbursement by Keystone in connection with
    the  voluntary  expense  limitation  in place during the fiscal period ended
    November 30, 1994. Before expense reimbursement, the "Ratio of operating and
    management   expenses  to  average   net  assets"   would  have  been  1.66%
    (annualized) for the period February 1, 1994 (Commencement of Operations) to
    November 30, 1994.
(b) Total  return  is  calculated  from  February  1,  1994   (Commencement   of
    Operations) to November 30, 1994.
(c) Annualized.
<PAGE>

                             FINANCIAL HIGHLIGHTS

                  KEYSTONE CALIFORNIA INSURED TAX FREE FUND
                                CLASS B SHARES

               (For a share outstanding throughout the period)

     The following table contains important  financial  information with respect
to the  California  Insured  Tax Free  Fund and has been  audited  by KPMG  Peat
Marwick LLP, the FUND's  independent  auditors.  The table appears in the FUND's
Annual  Report  and  should be read in  conjunction  with the  FUND's  financial
statements and related notes,  which also appear,  together with the independent
auditors' report, in the FUND's Annual Report. The FUND's financial  statements,
related notes, and independent auditors' report are included in the statement of
additional  information.  Additional information about the FUND's performance is
contained in its Annual  Report,  which will be made  available upon request and
without charge.

                                                              FEBRUARY 1, 1994
                                                              (COMMENCEMENT OF
                                                               OPERATIONS) TO
                                                                NOVEMBER 30,
                                                                    1994
                                                              ----------------
NET ASSET VALUE, BEGINNING OF PERIOD .......................     $10.000
                                                                 -------
Income from investment operations
Investment income -- net ...................................       0.401
Realized gains (losses) on investments -- net ..............      (1.284)
                                                                 -------
Total from investment operations ...........................      (0.883)
                                                                 -------
Less distributions
Dividends from investment income -- net ....................      (0.401)
Distributions in excess of investment income -- net ........      (0.036)
                                                                 -------
Total distributions ........................................      (0.437)
                                                                 -------
NET ASSET VALUE, END OF PERIOD .............................     $ 8.680
                                                                 =======
TOTAL RETURN (a) ...........................................      (9.00%)(c)
RATIOS/SUPPLEMENTAL DATA
Ratios to average net assets:
  Operating and management expenses (b) ....................       1.16%(d)
  Investment income -- net .................................       4.83%(d)
  Portfolio turnover rate ..................................        104%
Net assets end of period (thousands) .......................     $11,415

(a) Without contingent deferred sales charge (CDSC).
(b) Figures are net of the expense  reimbursement by Keystone in connection with
    the  voluntary  expense  limitation  in place during the fiscal period ended
    November 30, 1994. Before expense reimbursement, the "Ratio of operating and
    management   expenses  to  average   net  assets"   would  have  been  2.36%
    (annualized) for the period February 1, 1994 (Commencement of Operations) to
    November 30, 1994.
(c) Total  return  is  calculated  from  February  1,  1994   (Commencement   of
    Operations) to November 30, 1994.
(d) Annualized.
<PAGE>

                             FINANCIAL HIGHLIGHTS

                  KEYSTONE CALIFORNIA INSURED TAX FREE FUND
                                CLASS C SHARES

               (For a share outstanding throughout the period)

     The following table contains important  financial  information with respect
to the  California  Insured  Tax Free  Fund and has been  audited  by KPMG  Peat
Marwick LLP, the FUND's  independent  auditors.  The table appears in the FUND's
Annual  Report  and  should be read in  conjunction  with the  FUND's  financial
statements and related notes,  which also appear,  together with the independent
auditors' report, in the FUND's Annual Report. The FUND's financial  statements,
related notes, and independent auditors' report are included in the statement of
additional  information.  Additional information about the FUND's performance is
contained in its Annual  Report,  which will be made  available upon request and
without charge.

                                                              FEBRUARY 1, 1994
                                                              (COMMENCEMENT OF
                                                               OPERATIONS) TO
                                                                NOVEMBER 30,
                                                                    1994
                                                              ----------------
NET ASSET VALUE, BEGINNING OF PERIOD .......................     $10.000
                                                                 -------
Income from investment operations
Investment income -- net ...................................       0.392
Realized gains (losses) on investments -- net ..............      (1.292)
                                                                 -------
Total from investment operations ...........................      (0.900)
                                                                 -------
Less distributions
Dividends from investment income -- net ....................      (0.392)
Distributions in excess of investment income -- net ........      (0.028)
                                                                 -------
Total distributions ........................................      (0.420)
                                                                 -------
NET ASSET VALUE, END OF PERIOD .............................     $ 8.680
                                                                 =======
TOTAL RETURN (a) ...........................................      (9.08%)(c)
RATIOS/SUPPLEMENTAL DATA
Ratios to average net assets:
  Operating and management expenses (b) ....................       1.16%(d)
  Investment income -- net .................................       4.96%(d)
  Portfolio turnover rate ..................................        104%
Net assets end of period (thousands) .......................     $   624

(a) Without contingent deferred sales charge (CDSC).
(b) Figures are net of the expense  reimbursement by Keystone in connection with
    the  voluntary  expense  limitation  in place during the fiscal period ended
    November 30, 1994. Before expense reimbursement, the "Ratio of operating and
    management   expenses  to  average   net  assets"   would  have  been  2.38%
    (annualized) for the period February 1, 1994 (Commencement of Operations) to
    November 30, 1994.
(c) Total  return  is  calculated  from  February  1,  1994   (Commencement   of
    Operations) to November 30, 1994.
(d) Annualized.
<PAGE>

                             FINANCIAL HIGHLIGHTS

                       KEYSTONE MISSOURI TAX FREE FUND
                                CLASS A SHARES

               (For a share outstanding throughout the period)

     The following table contains important  financial  information with respect
to the Missouri Tax Free Fund and has been audited by KPMG Peat Marwick LLP, the
FUND's independent  auditors.  The table appears in the FUND's Annual Report and
should be read in conjunction with the FUND's  financial  statements and related
notes, which also appear, together with the independent auditors' report, in the
FUND's Annual  Report.  The FUND's  financial  statements,  related  notes,  and
independent  auditors'  report  are  included  in the  statement  of  additional
information. Additional information about the FUND's performance is contained in
its Annual Report, which will be made available upon request and without charge.

                                                              FEBRUARY 1, 1994
                                                              (COMMENCEMENT OF
                                                               OPERATIONS) TO
                                                                NOVEMBER 30,
                                                                    1994
                                                              ----------------
NET ASSET VALUE, BEGINNING OF PERIOD .......................     $10.000
                                                                 -------
Income from investment operations
Investment income -- net ...................................       0.443
Realized gains (losses) on investments -- net ..............      (1.279)
                                                                 -------
Total from investment operations ...........................      (0.836)
                                                                 -------
Less distributions
Dividends from investment income -- net ....................      (0.443)
Distributions in excess of investment income -- net ........      (0.001)
                                                                 -------
Total distributions ........................................      (0.444)
                                                                 -------
NET ASSET VALUE, END OF PERIOD .............................     $ 8.720
                                                                 =======
TOTAL RETURN ...............................................      (8.55%)(b)
RATIOS/SUPPLEMENTAL DATA
Ratios to average net assets:
  Operating and management expenses (a) ....................       0.43%(c)
  Investment income -- net .................................       5.38%(c)
  Portfolio turnover rate ..................................         25%
Net assets, end of period (thousands) ......................     $ 3,581

(a) Figures are net of the expense  reimbursement by Keystone in connection with
    the  voluntary  expense  limitation  in place during the fiscal period ended
    November 30, 1994. Before expense reimbursement, the "Ratio of operating and
    management   expenses  to  average   net  assets"   would  have  been  1.54%
    (annualized) for the period February 1, 1994 (Commencement of Operations) to
    November 30, 1994.
(b) Total  return  is  calculated  from  February  1,  1994   (Commencement   of
    Operations) to November 30, 1994.
(c) Annualized.
<PAGE>

                             FINANCIAL HIGHLIGHTS

                       KEYSTONE MISSOURI TAX FREE FUND
                                CLASS B SHARES

               (For a share outstanding throughout the period)

     The following table contains important  financial  information with respect
to the Missouri Tax Free Fund and has been audited by KPMG Peat Marwick LLP, the
FUND's independent  auditors.  The table appears in the FUND's Annual Report and
should be read in conjunction with the FUND's  financial  statements and related
notes, which also appear, together with the independent auditors' report, in the
FUND's Annual  Report.  The FUND's  financial  statements,  related  notes,  and
independent  auditors'  report  are  included  in the  statement  of  additional
information. Additional information about the FUND's performance is contained in
its Annual Report, which will be made available upon request and without charge.

                                                              FEBRUARY 1, 1994
                                                              (COMMENCEMENT OF
                                                               OPERATIONS) TO
                                                                NOVEMBER 30,
                                                                    1994
                                                              ----------------
NET ASSET VALUE, BEGINNING OF PERIOD .......................     $10.000
                                                                 -------
Income from investment operations
Investment income -- net ...................................       0.404
Realized gains (losses) on investments -- net ..............      (1.290)
                                                                 -------
Total from investment operations ...........................      (0.886)
                                                                 -------
Less distributions
Dividends from investment income -- net ....................      (0.404)
Distributions in excess of investment income -- net ........      (0.040)
                                                                 -------
Total distributions ........................................      (0.444)
                                                                 -------
NET ASSET VALUE, END OF PERIOD .............................     $ 8.670
                                                                 =======
TOTAL RETURN (a) ...........................................      (9.06%)(c)
RATIOS/SUPPLEMENTAL DATA
Ratios to average net assets:
  Operating and management expenses (b) ....................       1.16%(d)
  Investment income -- net .................................       4.70%(d)
  Portfolio turnover rate ..................................         25%
Net assets, end of period (thousands) ......................     $12,906

(a) Without contingent deferred sales charge (CDSC).
(b) Figures are net of the expense  reimbursement by Keystone in connection with
    the  voluntary  expense  limitation  in place during the fiscal period ended
    November 30, 1994. Before expense reimbursement, the "Ratio of operating and
    management   expenses  to  average   net  assets"   would  have  been  2.49%
    (annualized) for the period February 1, 1994 (Commencement of Operations) to
    November 30, 1994.
(c) Total  return  is  calculated  from  February  1,  1994   (Commencement   of
    Operations) to November 30, 1994.
(d) Annualized.
<PAGE>

                             FINANCIAL HIGHLIGHTS

                       KEYSTONE MISSOURI TAX FREE FUND
                                CLASS C SHARES

               (For a share outstanding throughout the period)

     The following table contains important  financial  information with respect
to the Missouri Tax Free Fund and has been audited by KPMG Peat Marwick LLP, the
FUND's independent  auditors.  The table appears in the FUND's Annual Report and
should be read in conjunction with the FUND's  financial  statements and related
notes, which also appear, together with the independent auditors' report, in the
FUND's Annual  Report.  The FUND's  financial  statements,  related  notes,  and
independent  auditors'  report  are  included  in the  statement  of  additional
information. Additional information about the FUND's performance is contained in
its Annual Report, which will be made available upon request and without charge.

                                                              FEBRUARY 1, 1994
                                                              (COMMENCEMENT OF
                                                               OPERATIONS) TO
                                                                NOVEMBER 30,
                                                                    1994
                                                              ----------------
NET ASSET VALUE, BEGINNING OF PERIOD .......................     $10.000
                                                                 -------
Income from investment operations
Investment income -- net ...................................       0.388
Realized gains (losses) on investments -- net ..............      (1.294)
                                                                 -------
Total from investment operations ...........................      (0.906)
                                                                 -------
Less distributions
Dividends from investment income -- net ....................      (0.388)
Distributions in excess of investment income -- net ........      (0.046)
                                                                 -------
Total distributions ........................................      (0.434)
                                                                 -------
NET ASSET VALUE, END OF PERIOD .............................     $ 8.660
                                                                 =======
TOTAL RETURN (a) ...........................................      (9.25%)(c)
RATIOS/SUPPLEMENTAL DATA
Ratios to average net assets:
  Operating and management expenses (b) ....................       1.15%(d)
  Investment income -- net .................................       4.72%(d)
  Portfolio turnover rate ..................................         25%
Net assets, end of period (thousands) ......................     $ 1,045

(a) Without contingent deferred sales charge (CDSC).
(b) Figures are net of the expense  reimbursement by Keystone in connection with
    the  voluntary  expense  limitation  in place during the fiscal period ended
    November 30, 1994. Before expense reimbursement, the "Ratio of operating and
    management   expenses  to  average   net  assets"   would  have  been  2.60%
    (annualized) for the period February 1, 1994 (Commencement of Operations) to
    November 30, 1994.
(c) Total  return  is  calculated  from  February  1,  1994   (Commencement   of
    Operations) to November 30, 1994.
(d) Annualized.
<PAGE>

THE FUND AND ITS FUNDS

     The  FUND is a  non-diversified,  open-end  management  investment  company
commonly known as a mutual fund. The FUND was formed as a Massachusetts business
trust on December 15, 1993.  The FUND is one of thirty funds  managed or advised
by Keystone  Investment  Management  Company (formerly named Keystone  Custodian
Funds, Inc.)  ("Keystone"),  the FUND's investment  adviser.  The FUND currently
consists of two separate series evidencing  interests in different portfolios of
securities: the California Insured Fund and Missouri Tax Free Fund. The FUND may
offer additional funds in the future.

INVESTMENT OBJECTIVES AND POLICIES

INVESTMENT OBJECTIVES
     Each of the Funds seeks the highest  possible  current  income  exempt from
federal income taxes, while preserving capital.

FUNDS' PRINCIPAL INVESTMENTS
     Generally,  under ordinary  circumstances,  each Fund invests substantially
all  and at  least  80% of  its  assets  in  federally  tax-exempt  obligations,
including  municipal bonds and notes and municipal  tax-exempt  commercial paper
obligations, which are obligations issued by or on behalf of states, territories
and  possessions  of the United  States  ("U.S."),  the District of Columbia and
their political subdivisions, agencies and instrumentalities,  the interest from
which is exempt from federal  income taxes,  including the  alternative  minimum
tax.  Thus  it is  possible  that  up to  20% of a  Fund's  assets  could  be in
securities subject to the alternative minimum tax and/or in taxable obligations.

     Municipal bonds include fixed, variable or floating rate general obligation
and revenue bonds  (including  municipal lease  obligations,  resource  recovery
bonds and zero coupon bonds).  Municipal notes include tax  anticipation  notes,
bond anticipation notes, revenue anticipation notes and project notes. Municipal
commercial   paper   obligations   are  unsecured   promisory  notes  issued  by
municipalities to meet short-term credit needs.

CALIFORNIA INSURED TAX FREE FUND
     Under ordinary circumstances,  the California Insured Fund invests at least
80% of its assets in securities,  the interest from which is exempt from federal
taxes and California state income taxes. The California  Insured Fund invests in
debt  obligations  of the State of California  and its  political  subdivisions,
agencies,  authorities  and  instrumentalities  and  debt  obligations  of other
qualifying issuers, such as U.S. territories.

     The  California  Insured Fund invests only in  investment  grade  municipal
obligations  -- bonds rated at the date of  investment  within the four  highest
grades by Standard & Poor's Corporation ("S&P") (AAA, AA, A and BBB), by Moody's
Investors  Service,  Inc.  ("Moody's")  (Aaa, Aa, A and Baa), by Fitch Investors
Service,  Inc. -- Municipal  Division  ("Fitch") (AAA, AA, A and BBB) or, if not
rated  or  rated  under  a  different  system,  are  of  comparable  quality  to
obligations  so rated as  determined  by  Keystone.  Securities  that are in the
lowest investment grade (BBB or Baa) may have speculative characteristics.

     As more fully discussed below in the section entitled "Insurance," at least
80% of the municipal  securities in the  investment  portfolio of the California
Insured  Fund  will be  insured  as to  timely  payment  of both  principal  and
interest.  The purpose of insuring these investments is to minimize credit risks
associated  with  defaults  in  municipal  securities  owned by the  Fund.  Such
insurance,  however,  does not insure against market risk and therefore will not
guarantee the market value of the securities in the Fund's  portfolio upon which
the net asset value of the Fund's shares is based.

     For a further  discussion  of  California  tax  treatment  and the  factors
affecting investment in California municipal obligations, see Exhibit A.

MISSOURI TAX FREE FUND
     Under ordinary  circumstances,  the Missouri Tax Free Fund invests at least
80% of its assets in securities,  the interest from which is exempt from federal
taxes and Missouri  state income  taxes,  as well as being exempt from  Missouri
personal  property taxes. The Missouri Tax Free Fund invests in debt obligations
of the State of Missouri and its political subdivisions,  agencies,  authorities
and  instrumentalities and debt obligations of other qualifying issuers, such as
U.S. territories.

     The Missouri Tax Free Fund invests at least 80% of its assets in investment
grade municipal  obligations -- bonds rated at the date of investment within the
four highest  grades by S&P (AAA,  AA, A and BBB),  by Moody's  (Aaa,  Aa, A and
Baa), by Fitch (AAA,  AA, A and BBB) or, if not rated or rated under a different
system,  are of  comparable  quality to  obligations  so rated as  determined by
Keystone. The Fund may seek to maximize return with respect to a portion (not to
exceed 20%) of its assets.  Such maximum  return is ordinarily  associated  with
high yield,  high risk  municipal  bonds in the lower rating  categories  of the
recognized  rating agencies or that are unrated ("high yield bonds").  Such high
yield, high risk bonds generally involve greater volatility of price and risk of
principal  and income  than bonds in the higher  rating  categories  and are, on
balance,  considered  predominantly  speculative.  High  yield  bonds  are  also
commonly known as "junk bonds."

     For a  further  discussion  of  Missouri  tax  treatment  and  the  factors
affecting investment in Missouri municipal obligations, see Exhibit A.

MUNICIPAL OBLIGATIONS
     Municipal  obligations include debt obligations issued by or on behalf of a
political  subdivision of the U.S. or any agency or  instrumentality  thereof to
obtain funds for various public  purposes.  In addition,  municipal  obligations
include certain types of industrial  development  bonds that have been or may be
issued by or on  behalf of public  authorities  to  finance  privately  operated
facilities.  General obligation bonds involve the credit of an issuer possessing
taxing power and are payable from the issuer's  general  unrestricted  revenues.
Their payment may be dependent upon an appropriation by the issuer's legislative
body and may be subject  to  quantitative  limitations  on the  issuer's  taxing
power. Limited obligation or revenue bonds are payable only from the revenues of
a  particular  facility  or class of  facilities  or,  in some  cases,  from the
proceeds of a special excise or other specific revenue source,  such as the user
of the facility.  Since each Fund considers  preservation  of capital as well as
the level of tax-exempt income,  each Fund may realize less income than a mutual
fund willing to expose shareholders' capital to greater risk.

     The Tax Reform Act of 1986 made  significant  changes  in the  federal  tax
status of certain  obligations that were previously  fully federally tax-exempt.
As a result,  three categories of such  obligations  issued after August 7, 1986
now exist:  (1) "public  purpose"  bonds,  the income from which  remains  fully
exempt from federal  income tax; (2)  qualified  "private  activity"  industrial
development  bonds, the income from which,  while exempt from federal income tax
under Section 103 of the Internal  Revenue Code (the  "Code"),  is includable in
the  calculation  of the  federal  alternative  minimum  tax;  and (3)  "private
activity"  (private  purpose)  bonds,  the income  from which is not exempt from
federal income tax. A Fund will not invest in private  purpose bonds and, except
as described  under "Other Eligible  Investments,"  will not invest in qualified
"private activity" industrial  development bonds whose distributions are subject
to the alternative minimum tax.

     While a Fund may invest in  securities  of any  maturity,  it is  currently
expected that a Fund will not invest in securities  with maturities of more than
30 years or less than 5 years (other than certain money market securities).

OTHER ELIGIBLE INVESTMENTS
     A Fund may invest up to 20% of its assets under ordinary  circumstances and
up to 100% of its assets for temporary defensive purposes in the following types
of instruments: (1) commercial paper, including master demand notes, that at the
date of  investment  is rated  A-1  (the  highest  grade  by S&P),  PRIME-1 (the
highest  grade by  Moody's)  or, if not rated by such  services,  is issued by a
company  that at the date of  investment  has an  outstanding  issue  rated A or
better by S&P or Moody's; (2) obligations, including certificates of deposit and
bankers'  acceptances,  of banks or savings and loan  associations  that have at
least $1  billion  in assets  as of the date of their  most  recently  published
financial   statements  and  are  members  of  the  Federal  Deposit   Insurance
Corporation,  including U.S.  branches of foreign banks and foreign  branches of
U.S. banks;  (3) corporate  obligations  (maturing in 13 months or less) that at
the date of investment are rated A or better by S&P or Moody's;  (4) obligations
issued or guaranteed by the U.S.  government or by any agency or instrumentality
of the U.S.; (5) qualified "private activity" industrial  development bonds, the
income from which, while exempt from federal income tax under Section 103 of the
Code, is includable in the calculation of the federal  alternative  minimum tax;
and (6)  municipal  obligations,  the income from which is exempt  from  federal
income tax, but not exempt from income tax in  California  or income or personal
property tax in Missouri.  Each Fund may assume a temporary  defensive  position
upon Keystone's  determination  that market conditions so warrant.  If a Fund is
investing defensively, it is not pursuing its investment objectives.

     Each Fund may enter into  repurchase  and  reverse  repurchase  agreements,
purchase and sell securities on a when issued and delayed delivery basis,  write
covered  call and put  options  and  purchase  call and put  options,  including
purchasing call and put options to close out existing positions,  and may employ
new  investment  techniques  with  respect to such  options.  Each Fund may also
engage in financial  futures  contracts  and related  options  transactions  for
hedging  purposes  and  not  for  speculation  and  may  employ  new  investment
techniques  with  respect to such  futures  contracts  and related  options.  In
addition,  each Fund may invest in municipal obligations  denominated in foreign
currencies and may use  subsequently  developed  investment  techniques that are
related to any of its  investment  policies.  Neither  Fund is expected to enter
into repurchase agreements in the ordinary course of its business.

     In addition to the options and futures  mentioned above, if consistent with
its  investment  objectives,  the FUND may also invest in certain other types of
"derivative instruments," including structured securities.

     For  further  information  about the types of  investments  and  investment
techniques  available  to  the  Funds,   including  the  associated  risks,  see
"Additional  Investment  Information" located at the back of this prospectus and
the statement of additional information.

     There  can  be no  assurance  that  a  Fund  will  achieve  its  investment
objectives since there is uncertainty in every investment.

INSURANCE
     At least 80% of the municipal securities in the portfolio of the California
Insured Fund will consist of obligations  that at all times are fully insured as
to the payment of all principal  and interest  when due ("Insured  Securities").
Each Insured  Security in the  portfolio  will be covered by either a "New Issue
Insurance  Policy,"  a  "Portfolio  Insurance  Policy"  issued  by  a  qualified
municipal bond insurer,  or a "Secondary  Insurance  Policy." The insurance does
not insure against market risk and therefore does not guarantee the market value
of the securities in the California Insured Fund's portfolio. Similarly, because
the net asset value of the  California  Insured  Fund's shares is based upon the
market value of the securities in the  portfolio,  such insurance does not cover
or guarantee the value of the California Insured Fund's shares.

NEW ISSUE INSURANCE POLICIES
     New Issue Insurance  Policies are obtained by the respective issuers of the
municipal  securities and all premiums respecting such securities have been paid
in advance by such issuers.  Such policies are  noncancellable and will continue
in force so long as the municipal  securities are outstanding and the respective
insurers remain in business. Since New Issue Insurance Policies remain in effect
as long as the securities are  outstanding,  the insurance may have an effect on
the resale  value of the  Insured  Securities.  Therefore,  New Issue  Insurance
Policies may be  considered  to represent an element of market value with regard
to the Insured  Securities,  but the exact effect,  if any, of this insurance on
such market value cannot be estimated. The California Insured Fund will purchase
municipal  securities subject to New Issue Insurance Policies only if the claims
paying ability of the insurer thereof is rated AAA by S&P or Aaa by Moody's.

PORTFOLIO INSURANCE POLICIES
     Portfolio  Insurance  Policies are obtained by the California  Insured Fund
from a qualified  municipal  bond insurer and are effective  only so long as the
Fund is in  existence,  the  insurer  is  still  in  business  and  meeting  its
obligations,  and the Insured Securities described in the policy are held by the
California  Insured Fund.  Premium rates for each issue of securities covered by
the  policy  are  fixed  for the  life of the  California  Insured  Fund and are
periodically adjusted to reflect purchases and sales of covered securities.  The
premium on the  Portfolio  Insurance  Policy is an item of  expense  and will be
reflected in the California Insured Fund's average annual expenses. Premiums are
paid from the  California  Insured Fund's assets and reduce the current yield on
its portfolio by the amount thereof.  The insurer cannot cancel coverage already
in force with respect to Insured Securities owned by the California Insured Fund
and covered by the policy, except for nonpayment of premiums.

SECONDARY INSURANCE POLICIES
     The California Insured Fund may at any time purchase Secondary Insurance on
any  municipal  security  held by the  Fund.  Such  insurance  coverage  will be
noncancellable  and will ordinarily  continue in force so long as the securities
so insured are outstanding.  Secondary Insurance will likely be purchased by the
California Insured Fund if, in the opinion of Keystone,  the market value or net
proceeds of the sale of a security by the Fund would exceed the current value of
such security  (without  insurance)  plus the cost of such  insurance.  When the
California  Insured Fund purchases  Secondary  Insurance,  the single premium is
added to the cost basis of the security and is not considered an item of expense
of the Fund.  One of the purposes of such  insurance is to enable the securities
covered by such insurance to be sold as "AAA" or "Aaa" rated Insured  Securities
at a market price higher than that which might  otherwise be  obtainable  if the
securities were sold without the insurance coverage.  Therefore,  such insurance
may be  considered  to  represent  an  element of market  value of such  Insured
Securities,  although the exact  effect,  if any, on such market value cannot be
estimated.  Any difference  between the excess of such a security's market value
as an Aaa or AAA rated  security  over its market  value  without  such  rating,
including the single premium cost thereof, would inure to the California Insured
Fund in  determining  the net capital gain or loss realized by the Fund upon the
sale of such Insured Security.

FUNDAMENTAL NATURE OF INVESTMENT OBJECTIVES
     The investment  objectives of each Fund and the requirement  that each Fund
invest,  under ordinary  circumstances,  at least 80% of its assets in federally
tax-exempt municipal  obligations that are also exempt from certain taxes in the
state for which it is named, as set forth above,  are fundamental and may not be
changed without the vote of a majority, as defined in the Investment Company Act
of 1940 ("1940 Act"), of the affected Fund's outstanding shares (which means the
lesser of (1) 67% of the shares  represented at a meeting at which more than 50%
of  the  outstanding  shares  are  represented  or  (2)  more  than  50%  of the
outstanding shares).

INVESTMENT RESTRICTIONS
     Each Fund has adopted the fundamental  restrictions summarized below, which
may not be  changed  without  the vote of a 1940  Act  majority  of such  Fund's
outstanding  shares.  These  restrictions and certain other fundamental and non-
fundamental   restrictions   are   contained  in  the  statement  of  additional
information.  Unless otherwise stated,  all references to a Fund's assets are in
terms of current market value.

     Generally, each Fund may not do the following:

     (1)  purchase  any  security  of any issuer  (other than issues of the U.S.
government,  its agencies or  instrumentalities) if as a result more than 25% of
its total assets would be invested in a single  industry,  including  industrial
development  bonds  from the  same  facility  or  similar  types of  facilities;
governmental  issuers  of  municipal  bonds are not  regarded  as  members of an
industry,  and each Fund may invest  more than 25% of its  assets in  industrial
development bonds; and

     (2) borrow money or enter into reverse repurchase  agreements,  except that
each Fund may enter into  reverse  repurchase  agreements  or borrow  money from
banks for temporary or emergency  purposes in aggregate  amounts up to one-third
of the value of the Fund's net assets; provided that while borrowings from banks
(not  including  reverse  repurchase  agreements)  exceed 5% of the  Fund's  net
assets,  any such  borrowings will be repaid before  additional  investments are
made.

     The Funds are  non-diversified  under the federal  securities laws. As non-
diversified  funds, there is no restriction under the 1940 Act on the percentage
of assets that may be invested at any time in the  securities of any one issuer.
The  Funds  intend  to  comply,   however,   with  the  Code's   diversification
requirements  and  other  requirements   applicable  to  "regulated   investment
companies"  to ensure  they will not be  subject to U.S.  federal  income tax on
income and capital gain distributions to shareholders.

     For this reason, each Fund has adopted the investment restriction set forth
below,  which may not be changed  without  the  approval  of a  majority  of its
outstanding  shares.  Specifically,  a Fund may not  purchase a security if more
than 25% of the Fund's  total assets  would be invested in the  securities  of a
single   issuer   (other   than   the  U.S.   government,   its   agencies   and
instrumentalities)  or, with respect to 50% of the Fund's total assets,  if more
than 5% of such assets would be invested in the  securities  of a single  issuer
(other than the U.S. government, its agencies and instrumentalities).

     As a matter of practice,  a Fund treats  reverse  repurchase  agreements as
borrowings  for purposes of  compliance  with the  limitations  of the 1940 Act.
Reverse  repurchase  agreements will be taken into account along with borrowings
from  banks for  purposes  of the 5% limit  set  forth in the  fifth  investment
restriction above.

     The foregoing is only a summary of the Funds' investment restrictions and
policies. See the statement of additional information for details and the full
text of the Funds' investment restrictions and related policies.

RISK FACTORS

     Investing in a Fund  involves the risk common to investing in any security,
i.e.,  the net asset  value of a share of the Fund can  increase  or decrease in
response  to changes in economic  conditions,  interest  rates and the  market's
perception of the underlying portfolio securities of the Fund.

     By itself, a Fund does not constitute a balanced  investment program and is
not designed for investors  seeking capital  appreciation or maximum  tax-exempt
income  irrespective of fluctuations in principal or marketability.  Shares of a
Fund would not be suitable for tax-exempt  institutions  and may not be suitable
for  certain  retirement  plans  that are  unable  to  benefit  from the  Fund's
federally tax-exempt  dividends.  In addition,  the Funds may not be appropriate
investments for entities that are "substantial  users" of facilities financed by
industrial development bonds or related persons thereof.

     To the  extent  the  Funds  are not  fully  diversified,  they  may be more
susceptible to adverse economic,  political or regulatory developments affecting
a  single  issuer  than  would  be the  case  if the  Funds  were  more  broadly
diversified.

     In addition,  the market value of the fixed  income  securities  in which a
Fund may invest may vary inversely to changes in prevailing interest rates.

MUNICIPAL OBLIGATIONS
     A Fund's ability to achieve its objectives  depends partially on the prompt
payment by issuers of the interest on and principal of the municipal obligations
held by the Fund.  A  moratorium,  default or other  nonpayment  of  interest or
principal  when due on any  municipal  obligation,  in addition to affecting the
market value and liquidity of that particular security,  could affect the market
value and liquidity of other municipal  obligations held by a Fund. In addition,
the  market  for  municipal  obligations  is often  thin and can be  temporarily
affected by large purchases and sales, including those by a Fund.

     From time to time,  proposals have been introduced before the U.S. Congress
for the purpose of restricting  or eliminating  the federal income tax exemption
for  interest  on  municipal  obligations,  and  similar  proposals  may well be
introduced in the future.  If such a proposal were enacted,  the availability of
municipal  obligations  for  investment by each Fund and the value of the Fund's
securities  could be  materially  affected.  In such an  event,  the FUND  would
reevaluate its Funds' investment objectives and policies and consider changes in
the structure of the Funds or dissolution.

     If and when a Fund invests in municipal lease obligations,  the possibility
exists that a municipality may not appropriate the funds for lease payments. The
FUND's Board of Trustees  will be  responsible  for  determining,  on an ongoing
basis,  the credit  quality  of such  leases,  including  an  assessment  of the
likelihood of cancellation of any such lease.

NONINVESTMENT GRADE BONDS
     The Missouri Tax Free Fund's  investment policy allows the Fund to invest a
portion  (not to exceed  20%) of its assets in high yield,  high risk  municipal
bonds,  also  commonly  known as "junk bonds." The degree to which the Fund will
hold such securities will, among other things,  depend upon Keystone's  economic
forecast and its judgment as to the  comparative  values  offered by high yield,
high risk bonds and higher  quality  bonds.  The Missouri Tax Free Fund seeks to
invest up to 20% of its assets  aggressively  and to  maximize  return over time
from a combination  of many factors,  including  high current income and capital
appreciation  from  high  yield,  high risk  bonds.  Although  the total  amount
invested in high yield,  high risk bonds will not exceed 20% of the Missouri Tax
Free Fund, the Fund may (as a non-diversified fund) invest as much as the entire
20% in the securities of a single  issuer.  To that extent the Missouri Tax Free
Fund may be more  susceptible  to  adverse  economic,  political  or  regulatory
developments  affecting a single  issuer than would be the case if the Fund were
more broadly diversified.

     Such aggressive investing involves risks that are greater than the risks of
investing  in higher  quality  debt  securities.  These risks are  discussed  in
greater detail below and include risks from (1) interest rate  fluctuation;  (2)
changes in credit status,  including  weaker overall credit condition of issuers
and risks of default; (3) industry,  market and economic risk; (4) volatility of
price  resulting  from  broad  and  rapid  changes  in the  value of  underlying
securities;  and (5) greater  price  variability  and credit  risks of such high
yield, high risk securities as zero coupon bonds and PIK securities.

     Specifically, investors should be aware of the following:

     (1)  securities  rated BB or lower  by S&P or Ba or  lower by  Moody's  are
considered  predominantly  speculative with respect to the ability of the issuer
to meet principal and interest payments;

     (2) the value of high yield,  high risk securities may be more  susceptible
to real or perceived  adverse economic,  company or industry  conditions than is
the case for higher quality securities;

     (3) adverse market,  credit or economic  conditions could make it difficult
at certain times to sell certain high yield,  high risk  securities  held by the
Fund;

     (4) the secondary  market for high yield,  high risk securities may be less
liquid than the secondary market for higher quality securities, which may affect
the  value of  certain  high  yield,  high risk  securities  held by the Fund at
certain times; and

     (5) high yield,  high risk zero coupon securities may be subject to greater
changes  in value due to  market  conditions,  the  absence  of a cash  interest
payment and the tendency of issuers of such  securities  to have weaker  overall
credit conditions than other high yield, high risk securities.

     These  characteristics  of high  yield,  high  risk  securities  make  them
generally more appropriate for long term investment.

     If and when a Fund invests in zero coupon  bonds,  the Fund does not expect
to have enough zero coupon  bonds to have a material  effect on  dividends.  The
FUND has undertaken to a state securities authority to disclose that zero coupon
securities  pay no interest to holders prior to maturity,  and that the interest
on these  securities  is  reported  as income to a Fund and  distributed  to its
shareholders.  These  distributions must be made from the Fund's cash assets or,
if necessary, from the proceeds of sales of portfolio securities.  The Fund will
not be able to purchase additional income producing securities with cash used to
make such  distributions,  and its current income ultimately may be reduced as a
result.

     These risks provide the  opportunity  for maximizing  return over time on a
portion of the Missouri Tax Free Fund's assets, but may result in greater upward
and downward movement of the net asset value per share of the Fund. As a result,
they should be carefully considered by investors.

     The maximum  return sought by the Missouri Tax Free Fund with respect to up
to 20% of its  assets is  ordinarily  associated  with  securities  in the lower
rating  categories of the recognized rating agencies or with securities that are
unrated.  Such high yield,  high risk securities are generally rated BB or lower
by S&P or Ba or lower by  Moody's.  The Fund may invest in  securities  that are
rated  as  low as D by  S&P  and C- by  Moody's.  These  rating  categories  are
described  in the section of this  prospectus  entitled  "Additional  Investment
Information." The Fund intends to invest in D rated debt only in cases where, in
Keystone's judgment, there is a distinct prospect of improvement in the issuer's
financial position as a result of the completion of reorganization or otherwise.
The Fund may also invest in unrated  securities  that, in  Keystone's  judgment,
offer comparable yields and risks to those of securities that are rated, as well
as non-investment quality zero coupon and PIK securities.

     Since the Fund takes an  aggressive  approach to investing a portion of its
assets, Keystone tries to maximize the return by controlling the risk associated
with those  investments  through  diversification,  credit  analyses,  review of
sector and industry  trends,  interest  rate  forecasts  and economic  analysis.
Keystone's  analysis of  securities  focuses on values  based on factors such as
asset values,  earnings  prospects and the quality of management of the company.
In making  investment  recommendations,  Keystone also considers current income,
potential for capital  appreciation,  maturity  structure,  quality  guidelines,
coupon  structure,  average yield,  percentage of zeros and PIKs,  percentage of
non-accruing items and yield to maturity.

     Keystone also  considers the ratings of Moody's and S&P assigned to various
securities,  but does not rely  solely on ratings  assigned  by Moody's  and S&P
because (1) Moody's and S&P  assigned  ratings are based  largely on  historical
financial data and may not accurately  reflect the current  financial outlook of
municipalities;  and (2)  there  can be  large  differences  among  the  current
financial conditions of issuers within the same rating category.

TAX CONSIDERATIONS
     For a  discussion  of the tax  considerations  for each  state and  special
factors,  including  the  risks  associated  with  investing  in  the  municipal
securities of a single state, see Exhibit A to this prospectus and Appendix A to
the statement of additional information.

PRICING SHARES

     The net asset value of a Fund share is  computed  each day on which the New
York Stock  Exchange (the  "Exchange") is open as of the close of trading on the
Exchange  (currently  4:00 p.m.  eastern  time for the  purpose of pricing  Fund
shares)  except  on  days  when  changes  in the  value  of a  Fund's  portfolio
securities do not affect the current net asset value of its shares. The Exchange
currently is closed on weekends,  New Year's Day,  Presidents' Day, Good Friday,
Memorial Day,  Independence Day, Labor Day,  Thanksgiving Day and Christmas Day.
The net asset  value per share of each Fund is  arrived  at by  determining  the
value of the Fund's assets,  subtracting its liabilities and dividing the result
by the number of its shares outstanding. Net asset value per share is calculated
to two decimal  places for purposes of  purchases  and  redemptions  of a Fund's
shares.

     The Funds value municipal  obligations on the basis of valuations  provided
by a pricing  service,  approved  by the FUND's  Board of  Trustees,  which uses
information with respect to transactions in bonds, quotations from bond dealers,
market transactions in comparable  securities and various  relationships between
securities in determining value.

     Each Fund  values its  short-term  instruments  as  follows:  money  market
instruments  with  maturities of sixty days or less are valued at amortized cost
(original  purchase cost as adjusted for amortization of premium or accretion of
discount),  which,  when combined with accrued  interest,  approximates  market;
short-term  instruments  having  maturities  of more than  sixty  days for which
market  quotations are readily available are valued at current market value; and
short-term  instruments maturing in more than sixty days when purchased that are
held on the sixtieth day prior to maturity are valued at amortized  cost (market
value on the sixtieth day adjusted for  amortization  of premium or accretion of
discount), which, when combined with accrued interest,  approximates market; and
which,  in  either  case,  reflects  fair  value as  determined  by the Board of
Trustees.  All other  investments  are valued at market  value or,  where market
quotations are not readily available,  at fair value as determined in good faith
according to procedures established by the Board of Trustees.

DIVIDENDS AND TAXES

     Each Fund intends to declare dividends from net investment income daily and
distribute  to its  shareholders  such  dividends  monthly  and to  declare  and
distribute  all net realized  long-term  capital  gains  annually.  Shareholders
receive Fund  distributions  in the form of  additional  shares of that class of
shares upon which the distribution is based or, at the shareholder's  option, in
cash.  Shareholders  of a Fund who have not opted to  receive  cash prior to the
payable date for any dividend from net investment  income or the record date for
any capital gains distribution will have the number of such shares determined on
the basis of the Fund's net asset  value per share  computed  at the end of that
day after adjustment for the distribution.  Net asset value is used in computing
the  number  of  shares  in  both   capital   gains  and   income   distribution
reinvestments.  There is a possibility that shareholders may lose the tax-exempt
status on accrued income on municipal  bonds if shares of the Funds are redeemed
before a dividend has been declared.

     As of April 1,  1995,  in  compliance  with a recent  ruling  issued by the
Internal  Revenue  Service,  the Fund treats its 12b-1 fees for tax  purposes as
operating expenses rather than as capital charges.

     Differences in the operation of the Distribution  Plan adopted by the Class
A shares of each Fund  from that of the Class B and Class C  Distribution  Plans
will cause a  variation  in the net asset  values of the  respective  classes of
shares.

     Account statements and/or checks as appropriate will be mailed within seven
days after the Fund pays the distribution. Unless the FUND receives instructions
to the contrary  before the record or payable  date, as the case may be, it will
assume that a shareholder wishes to receive that distribution and future capital
gains and income distributions in shares.  Instructions continue in effect until
changed in writing.

     Each  of the  Funds  intends  to  qualify  in  the  future  as a  regulated
investment  company under the Code.  Each Fund is a separate  taxable entity for
purposes of Code provisions applicable to regulated investment  companies.  Each
of  the  Funds  qualifies  if,  among  other  things,   it  distributes  to  its
shareholders at least 90% of its net investment income for its fiscal year. Each
Fund also intends to make timely  distributions,  if  necessary,  sufficient  in
amount  to  avoid  the  nondeductible  4%  excise  tax  imposed  on a  regulated
investment  company to the extent that it fails to  distribute,  with respect to
each calendar  year, at least 98% of its ordinary  income for such calendar year
and 98% of its net capital gains for the one-year period ending on October 31 of
such calendar year. Any taxable  distribution  (1) would be declared in October,
November  or December to  shareholders  of record in such a month,  (2) would be
paid by the  following  January 31, and (3) would be  includable  in the taxable
income of shareholders for the year in which such  distributions  were declared.
If a  Fund  qualifies  and  if it  distributes  substantially  all  of  its  net
investment  income and net capital gains,  if any, to  shareholders,  it will be
relieved of any federal income tax liability.

     Each Fund expects that  substantially  all of its dividends will be "exempt
interest  dividends,"  which should be treated as excludable  from federal gross
income. In order to pay exempt interest dividends,  at least 50% of the value of
the Fund's assets must consist of federally tax-exempt  obligations at the close
of each  quarter.  An exempt  interest  dividend is any dividend or part thereof
(other than a capital  gain  dividend)  paid by the Fund with respect to its net
federally  excludable  municipal obligation interest and designated as an exempt
interest  dividend in a written notice mailed to each shareholder not later than
60 days  after  the  close of its  taxable  year.  The  percentage  of the total
dividends  paid by a Fund with  respect to any taxable  year that  qualifies  as
exempt  interest  dividends  will be the same for all  shareholders  of the Fund
receiving  dividends  with respect to such year.  If a  shareholder  receives an
exempt interest  dividend with respect to any share and such share has been held
for six months or less,  any loss on the sale or  exchange of such share will be
disallowed to the extent of the exempt interest dividend amount.

     Any  shareholder  of a Fund who may be a  "substantial  user" of a facility
financed with an issue of tax-exempt obligations or a "related person" to such a
user should  consult his tax adviser  concerning  his  qualification  to receive
exempt  interest  dividends  should  the Fund hold  obligations  financing  such
facility.

     Interest on certain  "private  activity bonds" issued after August 7, 1986,
although  otherwise  tax  exempt,  is  treated  as a  tax  preference  item  for
alternative minimum tax purposes. Under regulations to be promulgated,  a Fund's
exempt  interest   dividends  will  be  treated  the  same  way  to  the  extent
attributable  to  interest  paid  on  such  private  activity  bonds.  Corporate
shareholders  should also be aware that the receipt of exempt interest dividends
could subject them to  alternative  minimum tax under the  provisions of Section
56(g) of the Code (relating to "adjusted current earnings").

     Since none of a Fund's  income  will  consist of  corporate  dividends,  no
distributions will qualify for the corporate dividends received deduction.

     Each Fund  intends to  distribute  its net  capital  gains as capital  gain
dividends;  shareholders should treat such dividends as long-term capital gains.
Such  distributions  will be designated  as capital gain  dividends by a written
notice mailed to each  shareholder  no later than 60 days after the close of the
Fund's fiscal  taxable  year. If a shareholder  receives a capital gain dividend
and  holds  his  shares  for six  months  or less,  then any  allowable  loss on
disposition  of such shares will be treated as a long-term  capital  loss to the
extent of such capital gain dividend.

     Interest on indebtedness  incurred or continued by shareholders to purchase
or carry shares of a Fund will not be deductible for federal income tax purposes
to the extent of the portion of the interest expense relating to exempt interest
dividends;  that  portion  is  determined  by  multiplying  the total  amount of
interest  paid or accrued on the  indebtedness  by a fraction,  the numerator of
which is the exempt interest  dividends received by a shareholder in his taxable
year and the  denominator of which is the sum of the exempt  interest  dividends
and the taxable  distributions out of the Fund's investment income and long-term
capital gains received by the shareholder.

     The Funds may acquire  options to "put"  specified  securities to municipal
bond dealers or issuers from whom the securities  are purchased.  It is expected
that each Fund will be treated for federal  income tax  purposes as the owner of
the municipal  bonds acquired  subject to the put. The interest on the municipal
bonds will be tax-exempt to the Funds, and the purchase prices must be allocated
between  such  securities  and the put based upon their  respective  fair market
values. The IRS has not issued a published ruling on this matter and could reach
a different conclusion.

STATE INCOME TAXES
     The  exemption  of  interest  on  municipal  bonds for  federal  income tax
purposes does not necessarily result in exemption under the income, corporate or
personal  property  tax  laws  of  any  state  or  city.  Generally,  individual
shareholders  of the Funds receive  tax-exempt  treatment at the state level for
distributions  derived from  municipal  securities  of their state of residency.
Each Fund will report to  shareholders  on a state by state basis the sources of
its exempt interest  dividends.  For a further discussion of state tax treatment
relating to each Fund see Exhibit A to this prospectus.

     As mentioned  above, at the end of each quarter,  at least 50% of the value
of a Fund's  assets  must be  invested  in  municipal  obligations  in order for
distributions  to  qualify  as exempt  interest  dividends.  Under  particularly
unusual  circumstances,  such  as  when  a  Fund  is  in a  prolonged  defensive
investment position, it is possible that no portion of a Fund's distributions of
income to its shareholders for a fiscal year would be exempt from federal income
tax.  The  FUND  does not  presently  anticipate,  however,  that  such  unusual
circumstances will occur.

     The foregoing is only a summary of some of the important tax considerations
generally  affecting the FUND, its Funds and their  shareholders.  No attempt is
made to present a detailed  explanation  of the federal or state income or other
tax treatment of the FUND, its Funds or their shareholders,  and this discussion
is  not  intended  as  a  substitute  for  careful  tax  planning.  Accordingly,
shareholders are urged to consult their tax advisers with specific  reference to
their tax situations.

FUND MANAGEMENT AND EXPENSES

BOARD OF TRUSTEES
     Under  Massachusetts  law,  the FUND's  Board of Trustees  has absolute and
exclusive  control over the management and disposition of all assets of the FUND
and its  Funds.  Subject to the  authority  of the Board of  Trustees,  Keystone
serves as investment  adviser to the FUND and its Funds and is  responsible  for
the overall management of the FUND's business and affairs.

INVESTMENT ADVISER
     Keystone,  the FUND's investment  adviser,  located at 200 Berkeley Street,
Boston,   Massachusetts   02116-5034,   has  provided  investment  advisory  and
management  services to investment  companies and private  accounts since it was
organized  in  1932.   Keystone  is  a   wholly-owned   subsidiary  of  Keystone
Investments,   Inc.   (formerly   named   Keystone   Group,   Inc.)   ("Keystone
Investments"), 200 Berkeley Street, Boston, Massachusetts 02116-5034.

     Keystone  Investments is a corporation  predominantly  owned by current and
former  members of  management  of Keystone  and its  affiliates.  The shares of
Keystone Investments common stock beneficially owned by management are held in a
number of voting trusts, the trustees of which are George S. Bissell,  Albert H.
Elfner, III, Edward F. Godfrey and Ralph J. Spuehler,  Jr. Keystone  Investments
provides  accounting,   bookkeeping,  legal,  personnel  and  general  corporate
services to Keystone,  its  affiliates  and the Keystone  Investments  Family of
Funds.

     Pursuant to its Investment Advisory and Management  Agreement with the FUND
(the "Advisory Agreement"), Keystone provides investment advisory and management
services to the FUND and each Fund.

     Each Fund  currently  offered  pays  Keystone a fee for its services at the
annual rate set forth below:

                                                            Aggregate
                                                      Net Asset Value
Management                                              of the Shares
Fee                                                       of the Fund
- ---------------------------------------------------------------------
0.55% of the first                                 $ 50,000,000, plus
0.50% of the next                                  $ 50,000,000, plus
0.45% of the next                                  $100,000,000, plus
0.40% of the next                                  $100,000,000, plus
0.35% of the next                                  $100,000,000, plus
0.30% of the next                                  $100,000,000, plus
0.25% of amounts over                              $500,000,000

computed as of the close of business each business day and paid daily.

     The Advisory  Agreement  continues in effect from year to year only so long
as such  continuance is specifically  approved at least annually by the Board of
Trustees or by vote of a majority  of the  outstanding  shares of each Fund.  In
either case, the terms of the Advisory Agreement and continuance thereof must be
approved  by the vote of a  majority  of  Independent  Trustees  in  person at a
meeting  called  for the  purpose  of  voting  on such  approval.  The  Advisory
Agreement may be terminated as to any Fund, without penalty, on 60 days' written
notice by the FUND or Keystone, or may be terminated as to a Fund by the vote of
a majority of the shares of such Fund.  The Advisory  Agreement  will  terminate
automatically upon its assignment.

     The FUND has  adopted a Code of Ethics  incorporating  policies on personal
securities trading as recommended by the Investment Company Institute.

FUND EXPENSES
     Each Fund  will pay all of its  expenses.  In  addition  to the  investment
advisory and management fees discussed above,  the principal  expenses that each
Fund is expected to pay  include,  but are not  limited to,  transfer,  dividend
disbursing and shareholder  servicing agent costs and expenses;  custodian costs
and  expenses;  its pro rata  portion of  certain  Trustees'  fees,  fees of its
independent auditors,  fees of the FUND's legal counsel and legal counsel to the
FUND's  Board of  Trustees;  fees  payable  to  government  agencies,  including
registration  and  qualification  fees of the FUND,  the Funds and their  shares
under federal and state securities laws; and certain extraordinary  expenses. In
addition,  each  class  of  shares  of a Fund  will  pay  all  of  the  expenses
attributable  to it. Such expenses are currently  limited to  Distribution  Plan
expenses.  Each Fund also pays its brokerage  commissions,  interest charges and
taxes and certain extraordinary expenses.

     During the period February 1, 1994 (Commencement of Operations) to November
30,  1994,  the  California  Insured Fund and the Missouri Tax Free Fund paid or
accrued to Keystone  investment  management and administrative  services fees of
$49,627 and $47,930, respectively.

     During the period February 1, 1994 (Commencement of Operations) to November
30,  1994,  the  California  Insured Fund and the Missouri Tax Free Fund paid or
accrued to Keystone Investor Resource Center, Inc. ("KIRC"), the FUND's transfer
and  dividend  dispersing  agent,  $16,901,  and  $25,820,   respectively,   for
shareholder  services.  During  the period  February  1, 1994  (Commencement  of
Operations) to November 30, 1994,  the California  Insured Fund and the Missouri
Tax Free Fund paid or accrued to KGI  $11,753,  and  $10,954,  respectively,  as
reimbursement for certain accounting services.

     Currently,  Keystone has voluntarily limited the expenses of Class A shares
of each Fund to 0.75% of the  average  daily  net  assets  of such  class  until
December 31, 1995 and has currently  voluntarily limited expenses of Class B and
C shares to 1.50% of the  average  daily net  assets  of each such  class  until
December 31, 1995.  Thereafter,  a redetermination  of whether to continue these
expense limitations and, if so, at what rate, will be made. Keystone will not be
required to make such  reimbursement  to the extent it would  result in a Fund's
inability to qualify as a regulated  investment  company under the provisions of
the Code. In accordance with expense limitations in effect for the fiscal period
ended November 30, 1994, Keystone reimbursed the California Insured Fund and the
Missouri  Tax Free Fund (1) $23,507 and $12,109,  respectively,  with respect to
each Fund's Class A shares; (2) $81,857 and $91,759, respectively,  with respect
to each Fund's Class B shares;  and (3) $4,427 and $10,208,  respectively,  with
respect to each Fund's Class C shares.

PORTFOLIO MANAGER
     Betsy  Blacher,  a Keystone  Senior Vice President and Group Head, has been
the FUND's  portfolio  manager since the FUND's inception and is responsible for
the day-to-day  management of the California  Insured Fund. Ms. Blacher has more
than 16 years of investment experience.

     Daniel A Rabasco,  a Keystone  Vice  President and  Portfolio  Manager,  is
responsible  for the  day-to-day  management of the Missouri Tax Free Fund.  Mr.
Rabasco has more than 8 years of investment experience.

SECURITIES TRANSACTIONS
     Under  policies  established  by the Board of  Trustees,  Keystone  selects
broker-dealers to execute transactions subject to the receipt of best execution.
When selecting  broker-dealers  to execute  portfolio  transactions  for a Fund,
Keystone may follow a policy of  considering as a factor the number of shares of
the Fund  sold by such  broker-dealer.  In  addition,  broker-dealers  executing
portfolio  transactions  from  time to time may be  affiliated  with  the  FUND,
Keystone, the FUND's principal underwriter or their affiliates.

     A Fund may pay higher  commissions to broker-dealers  that provide research
services.  Keystone  may use these  services  in  advising  a Fund as well as in
advising its other clients.

PORTFOLIO TURNOVER
     For the fiscal period ended November 30, 1994, the portfolio  turnover rate
for the California  Insured Fund was 104%. For the same period the turnover rate
for the  Missouri  Tax Free Fund was 25%.  High  portfolio  turnover may involve
correspondingly greater brokerage commissions and other transaction costs, which
would be borne directly by a Fund, as well as additional  gains and/or losses to
shareholders. For additional information about brokerage and distributions,  see
the statement of additional information.

HOW TO BUY SHARES

     Shares  of each Fund may be  purchased  from any  broker-dealer  that has a
selling agreement with Keystone Investment  Distributors Company (formerly named
Keystone Distributors, Inc.) (the "Principal Underwriter"), the FUND's principal
underwriter.  The Principal Underwriter,  a wholly-owned subsidiary of Keystone,
is located at 200 Berkeley Street, Boston, Massachusetts 02116-5034.

     In  addition,  you may open an account for the purchase of shares of a Fund
by mailing to the FUND, c/o KIRC, P.O. Box 2121,  Boston,  Massachusetts  02106-
2121, a completed  account  application  and a check payable to the FUND. Or you
may telephone 1-800-343-2898 to obtain the number of an account to which you can
wire or  electronically  transfer  funds  and then send in a  completed  account
application. Subsequent investments in a Fund's shares in any amount may be made
by check, by wiring federal funds or by an electronic funds transfer ("EFT").

     Orders  for the  purchase  of  shares  of a Fund  will be  confirmed  at an
offering  price  equal to the net asset  value per share next  determined  after
receipt of the order in proper form by the Principal  Underwriter  (generally as
of the close of the  Exchange on that day) plus,  in the case of Class A shares,
the applicable sales charge.  Orders received by dealers or other firms prior to
the close of the Exchange and received by the Principal Underwriter prior to the
close of its business day will be confirmed at the offering  price  effective as
of the  close of the  Exchange  on that  day.  The FUND  reserves  the  right to
determine  the  net  asset  value  more  frequently  than  once a day if  deemed
desirable.  Dealers and other financial services firms are obligated to transmit
orders promptly.

     Orders  for  shares of a Fund  received  other  than as stated  above  will
receive  the  offering  price  equal  to the net  asset  value  per  share  next
determined  (generally the next business day's offering price) plus, in the case
of Class A shares, the applicable sales charge.

     Your initial  purchase must be at least $1,000.  There is no minimum amount
for subsequent purchases.

     Shares  become  entitled  to  income  distributions  declared  on the first
business  day  following  receipt by KIRC of payment for the  shares.  It is the
investor's  responsibility  to see that his dealer promptly  forwards payment to
the Principal Underwriter for shares being purchased through the dealer.

     The FUND  reserves  the right to withdraw  all or any part of the  offering
made by this prospectus and to reject purchase orders.

     Shareholder  inquiries  should be  directed  to KIRC by  calling  toll free
1-800-343-2898 or  writing to KIRC or to the firm from which you  received  this
prospectus.

ALTERNATIVE SALES OPTIONS

     Generally, each Fund offers three classes of shares:

CLASS A SHARES -- FRONT END LOAD OPTION
     Class A shares are sold with a sales charge at the time of purchase.  Class
A shares are not  subject to a sales  charge  when they are  redeemed  except as
follows:  Class A shares  purchased  on or after April 10, 1995 (1) in an amount
equal to or exceeding $1,000,000 or (2) by a corporate qualified retirement plan
or a non-qualified  deferred compensation plan sponsored by a corporation having
100 or more eligible  employees (a "Qualifying  Plan"), in either case without a
front end sales charge,  will be subject to a contingent  deferred  sales charge
for the 24 month period  following the date of purchase.  Certain Class A shares
purchased prior to April 10, 1995 may be subject to a deferred sales charge upon
redemption during the one year period following the date of purchase.

CLASS B SHARES -- BACK END LOAD OPTION
     Class B shares are sold without a sales charge at the time of purchase, but
are,  with certain  exceptions,  subject to a deferred  sales charge if they are
redeemed.  Class B shares  purchased  on or after June 1, 1995 are  subject to a
deferred sales charge upon redemption  during the 72 month period  following the
month of purchase. Class B shares purchased prior to June 1, 1995 are subject to
a deferred sales charge upon redemption during the four calendar years following
purchase.  Class B shares  purchased  on or after  June 1,  1995  that have been
outstanding for eight years  following the month of purchase will  automatically
convert to Class A shares  without  imposition  of a front-end  sales  charge or
exchange fee. Class B shares  purchased  prior to June 1, 1995 will retain their
existing conversion rights.

CLASS C SHARES -- LEVEL LOAD OPTION
     Class C shares are sold without a sales charge at the time of purchase, but
are  subject to a deferred  sales  charge if they are  redeemed  within one year
after the date of purchase.  Class C shares are available  only through  dealers
who have  entered  into  special  distribution  agreements  with  the  Principal
Underwriter.

     Class A and B shares,  pursuant to their Distribution Plans,  currently pay
an  annual  service  fee of  0.15%  of  the  Fund's  average  daily  net  assets
attributable to their respective  classes.  Class C shares pay an annual service
fee of 0.25% of the Fund's average daily net assets  attributable to Class C. In
addition to the service fee, the Class B and Class C Distribution  Plans provide
for the  payment  of an annual  distribution  fee of up to 0.75% of the  average
daily net assets attributable to their respective classes.

     Investors who would rather pay the entire cost of  distribution at the time
of investment,  rather than spreading the cost over time, might consider Class A
shares.  Other investors might consider Class B or Class C shares, in which case
100% of the purchase price is invested  immediately,  depending on the amount of
the purchase and the length of investment.

     The Funds will not  normally  accept any  purchase of Class B shares in the
amount of $250,000 or more and will not normally  accept any purchase of Class C
shares in the amount of $1,000,000 or more.

                      ---------------------------------------
CLASS A SHARES

     Class A shares are offered at net asset value plus an initial  sales charge
as follows:

<TABLE>
<CAPTION>
                                                                   AS A % OF          CONCESSION TO
                                                   AS A % OF      NET AMOUNT      DEALERS AS A % OF
AMOUNT OF PURCHASE                            OFFERING PRICE       INVESTED*         OFFERING PRICE
- ---------------------------------------------------------------------------------------------------
<S>                                                    <C>             <C>                    <C>  
Less than $100,000 .....................               4.75%           4.99%                  4.25%
$100,000 but less than $250,000 ........               3.75%           3.90%                  3.25%
$250,000 but less than $500,000 ........               2.50%           2.56%                  2.25%
$500,000 but less than $1,000,000 ......               1.50%           1.52%                  1.50%
- ---------
*Rounded to the nearest one-hundredth percent.
</TABLE>

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

     Purchases  of a Fund's  Class A shares in the  amount of $1 million or more
and/or  purchases  of Class A shares  made by a  Qualifying  Plan will be at net
asset  value  without the  imposition  of a front-end  sales  charge  (each such
purchase, an "NAV Purchase").

     With respect to NAV Purchases,  the Principal  Underwriter will pay broker/
dealers or others concessions based on (1) the investor's  cumulative  purchases
during the one-year  period  beginning with the date of the initial NAV Purchase
and (2) the investor's  cumulative  purchases  during each  subsequent  one-year
period  beginning  with the first NAV  Purchase  following  the end of the prior
period.  For such  purchases,  concessions  will be paid at the following  rate:
0.50% of the investment  amount up to  $4,999,999,  plus 0.25% of the investment
amount over $4,999,999.

     Class A shares  acquired on or after April 10, 1995 in an NAV  Purchase are
subject to a contingent  deferred sales charge of 0.50% upon  redemption  during
the 24 month period commencing on the date the shares were originally purchased.
Certain Class A shares purchased without a front-end sales charge prior to April
10,  1995 are  subject  to a  contingent  deferred  sales  charge of 0.25%  upon
redemption  during the one-year  period  commencing on the date such shares were
originally purchased.

     The  sales  charge  is paid to the  Principal  Underwriter,  which  in turn
normally  reallows a portion to your  broker-dealer.  In addition,  your broker-
dealer  currently will be paid periodic  service fees at an annual rate of up to
0.15% of the average daily net asset value of Class A shares  maintained by such
recipient outstanding on the books of the FUND for specified periods.

     Upon  written  notice to dealers  with whom it has dealer  agreements,  the
Principal Underwriter may reallow up to the full applicable sales charge.

     Initial  sales  charges  may  be  reduced  or  eliminated  for  persons  or
organizations  purchasing  Class A shares of a Fund alone or in combination with
Class  A  shares  of  other  Keystone  America  Funds.  See  Exhibit  B to  this
prospectus.  Initial sales charges may also be eliminated for persons purchasing
Class A shares that are included in a managed fee based program  (wrap  account)
through  broker  dealers  who have  entered  into  special  agreements  with the
Principal Underwriter.

     Since January 1, 1995 through June 30, 1995 and upon prior  notification to
the Principal Underwriter, Class A shares may be purchased at net asset value by
clients of registered  representatives within six months after the redemption of
shares of any registered  open-end investment company not distributed or managed
by Keystone or its affiliates,  where the amount invested represents  redemption
proceeds from such unrelated,  registered open-end  investment company,  and the
shareholder  either (1) paid a front end sales  charge,  or (2) was at some time
subject to, but did not actually  pay, a contingent  deferred  sales charge with
respect to the redemption proceeds.

     In addition, upon prior notification to the Principal Underwriter,  Class A
shares  may  be  purchased   at  net  asset  value  by  clients  of   registered
representatives   within   six   months   after  a  change  in  the   registered
representative's  employment,  where the amount invested  represents  redemption
proceeds  from  a  registered   open-end   management   investment  company  not
distributed or managed by Keystone or its affiliates; and the shareholder either
(1) paid a front end sales  charge,  or (2) was at some time subject to, but did
not  actually  pay, a  contingent  deferred  sales  charge  with  respect to the
redemption proceeds.

CLASS A DISTRIBUTION PLAN
     Each Fund has  adopted a  Distribution  Plan  with  respect  to its Class A
shares (the "Class A Distribution Plan"), which provides for payments (currently
limited  to 0.15%  annually  of the  average  daily net  asset  value of Class A
shares) to pay  expenses  associated  with the  distribution  of Class A shares.
Amounts  paid by each  Fund  to the  Principal  Underwriter  under  the  Class A
Distribution  Plan are currently  used to pay others,  such as dealers,  service
fees at an annual  rate of up to 0.15% of the  average  daily net asset value of
Class A shares maintained by such others  outstanding on the books of a Fund for
specified periods.

CLASS B SHARES

     Class B shares are  offered at net asset  value,  without an initial  sales
charge.

     With  respect to Class B shares  purchased  on or after June 1, 1995,  each
Fund,  with certain  exceptions,  imposes a deferred  sales charge in accordance
with the following schedule:

                                                     DEFERRED
                                                      SALES
                                                      CHARGE
REDEMPTION TIMING                                    IMPOSED
- -----------------                                    -------
First twelve month period following month of
  purchase ...................................        5.00%
Second twelve month period following month of
  purchase ...................................        4.00%
Third twelve month period following month of
  purchase ...................................        3.00%
Fourth twelve month period following month of
  purchase ...................................        3.00%
Fifth twelve month period following month of
  purchase ...................................        2.00%
Sixth twelve month period following month of
  purchase ...................................        1.00%

No deferred sales charge is imposed on amounts redeemed thereafter.

     With respect to Class B shares  purchased prior to June 1, 1995, each Fund,
with  certain  exceptions,  imposes a deferred  sales  charge of 3.00% on shares
redeemed  during the calendar year of purchase and the first calendar year after
the year of purchase;  2.00% on shares  redeemed during the second calendar year
after  the year of  purchase;  and  1.00% on shares  redeemed  during  the third
calendar year after the year of purchase. No deferred sales charge is imposed on
amounts redeemed thereafter.

     When imposed,  the deferred  sales charge is deducted  from the  redemption
proceeds  otherwise  payable to the  shareholder.  The deferred  sales charge is
retained  by the  Principal  Underwriter.  Amounts  received  by  the  Principal
Underwriter  under the Class B Distribution  Plans are reduced by deferred sales
charges retained by the Principal  Underwriter.  See "Contingent  Deferred Sales
Charges and Waiver of Sales Charges" below.

     Class  B  shares  purchased  on or  after  June  1,  1995  that  have  been
outstanding for eight years  following the month of purchase will  automatically
convert  to Class A shares  (which  are  subject  to a lower  Distribution  Plan
charge) without  imposition of a front-end sales charge or exchange fee. Class B
shares purchased prior to June 1, 1995 will similarly  convert to Class A shares
at the end of seven  calendar  years after the year of purchase.  (Conversion of
Class B shares  represented by stock certificates will require the return of the
stock  certificates  to KIRC.) The Class B shares so converted will no longer be
subject to the higher  expenses  borne by Class B shares.  Because the net asset
value per  share of the Class A shares  may vary from that of the Class B shares
at the time of  conversion,  although  the  dollar  value  will be the  same,  a
shareholder  may receive more or fewer Class A shares than the number of Class B
shares  converted.  Under  current  law,  it is the FUND's  opinion  that such a
conversion  will not constitute a taxable event under federal income tax law. In
the event that this ceases to be the case,  the Board of Trustees  will consider
what action,  if any, is  appropriate  and in the best  interests of the Class B
shareholders.

CLASS B DISTRIBUTION PLANS
     Each Fund has adopted Distribution Plans with respect to its Class B shares
(the "Class B Distribution  Plans") that provide for  expenditures  at an annual
rate of up to 1.00%  of the  average  daily  net  asset  value of Class B shares
(currently  limited to 0.90%) to pay  expenses  of the  distribution  of Class B
shares.  Payments under the Class B Distribution Plans are currently made to the
Principal Underwriter (which may reallow all or part to others, such as dealers)
(1) as commissions for Class B shares sold and (2) as shareholder  service fees.
Amounts paid or accrued to the  Principal  Underwriter  under (1) and (2) in the
aggregate may not exceed the annual limitation referred to above.

     The  Principal  Underwriter  generally  reallows  to  brokers  or  others a
commission equal to 4.00% of the price paid for each Class B share sold plus the
first year's service fee in advance in the amount of 0.15% of the price paid for
each Class B share sold. Beginning approximately 12 months after the purchase of
a Class B share,  the broker or other  party  will  receive  service  fees at an
annual rate of 0.15% of the average  daily net asset value of such Class B share
maintained by the recipient  outstanding on the books of such Fund for specified
periods. See "Distribution Plans" below.

     With  respect to each Fund's  Class B shares  only,  for the period June 1,
1995 to August 31, 1995,  the  Principal  Underwriter  will reallow an increased
commission equal to 4.85% of the price paid for each Class B share sold to those
broker/dealers or others who allow their individual  selling  representatives to
participate in the additional 0.85% commission.

CLASS C SHARES

     Class  C  shares  are  offered  only  through   dealers  who  have  special
distribution  agreements  with the  Principal  Underwriter.  Class C shares  are
offered at net asset  value,  without  an initial  sales  charge.  With  certain
exceptions,  each Fund may  impose a  deferred  sales  charge of 1.00% on shares
redeemed within one year after the date of purchase. No deferred sales charge is
imposed on amounts redeemed thereafter. If imposed, the deferred sales charge is
deducted from the  redemption  proceeds  otherwise  payable to you. The deferred
sales charge is retained by the Principal Underwriter.  See "Contingent Deferred
Sales Charges and Waiver of Sales Charges" below.

CLASS C DISTRIBUTION PLAN
     Each Fund has  adopted a  Distribution  Plan  with  respect  to its Class C
shares (the "Class C Distribution  Plan") that provides for  expenditures  at an
annual  rate of up to 1.00% of the  average  daily  net  asset  value of Class C
shares (currently limited to 0.90%) to pay expenses of the distribution of Class
C shares. Payments under the Class C Distribution Plan are currently made to the
Principal Underwriter (which may reallow all or part to others, such as dealers)
(1) as commissions for Class C shares sold and (2) as shareholder  service fees.
Amounts paid or accrued to the  Principal  Underwriter  under (1) and (2) in the
aggregate may not exceed the annual limitation  referred to above. The Principal
Underwriter  generally  reallows to brokers or others a commission in the amount
of 0.75% of the price paid for each Class C share  sold,  plus the first  year's
service fee in advance in the amount of 0.25% of the price paid for each Class C
share sold,  and,  beginning  approximately  fifteen  months after  purchase,  a
commission  at  an  annual  rate  of  0.75%   (subject  to  NASD  rules  --  see
"Distribution   Plans")   plus  service  fees  at  the  annual  rate  of  0.25%,
respectively,  of the  average  daily  net  asset  value  of each  Class C share
maintained by the recipients  outstanding on the books of the Fund for specified
periods. See "Distribution Plans" below.

CONTINGENT DEFERRED SALES CHARGE AND WAIVER OF SALES CHARGES

     Any  contingent  deferred sales charge imposed upon the redemption of Class
A, Class B or Class C shares is a percentage  of the lesser of (1) the net asset
value of the shares  redeemed  or (2) the net asset value at time of purchase of
such  shares.  No  contingent  deferred  sales  charge is imposed  when  amounts
redeemed are derived from (1) increases in the value of an account above the net
cost of such shares due to increases in the net asset value per share of a Fund;
(2) certain  shares  with  respect to which a Fund did not pay a  commission  on
issuance,  including shares acquired through reinvestment of dividend income and
capital gains  distributions;  (3) certain Class A shares held for more than one
year or two years,  as the case may be, from the date of  purchase;  (4) Class B
shares  held during more than four  consecutive  calendar  years or more than 72
months  after the month of  purchase,  as the case may be; or (5) Class C shares
held for more than one year from date of purchase.  Upon request for redemption,
shares not  subject to the  contingent  deferred  sales  charge will be redeemed
first. Thereafter, shares held the longest will be the first to be redeemed.

     Each  Fund may also  sell  Class A,  Class B or Class C shares at net asset
value without any initial sales charge or a contingent  deferred sales charge to
certain Directors, Trustees, officers and employees of the Fund and Keystone and
certain of their affiliates; to registered  representatives of firms with dealer
agreements with the Principal Underwriter; and to a bank or trust company acting
as a trustee for a single account.

     With respect to Class A shares  purchased by a Qualifying Plan at net asset
value or Class C shares purchased by a Qualifying  Plan, no contingent  deferred
sales  charge  will  be  imposed  on any  redemptions  made  specifically  by an
individual  participant in the Qualifying  Plan. This waiver is not available in
the  event a  Qualifying  Plan (as a  whole)  redeems  substantially  all of its
assets.

     In addition, no contingent deferred sales charge is imposed on a redemption
of shares of a Fund in the event of (1) death or disability of the  shareholder;
(2) a lump-sum  distribution  from a 401(k) plan or other benefit plan qualified
under  the  Employee  Retirement  Income  Security  Act of 1974  ("ERISA");  (3)
automatic  withdrawals  from ERISA plans if the  shareholder  is at least 59 1/2
years old; (4) involuntary redemptions of accounts having an aggregate net asset
value  of less  than  $1,000;  (5)  automatic  withdrawals  under  an  automatic
withdrawal plan of up to 1 1/2% per month of the  shareholder's  initial account
balance;  (6)  withdrawals  consisting  of loan  proceeds to a  retirement  plan
participant;  (7)  financial  hardship  withdrawals  made by a  retirement  plan
participant; or (8) withdrawals consisting of returns of excess contributions or
excess deferral amounts made to a retirement plan participant.

ARRANGEMENTS WITH BROKER-DEALERS AND OTHERS
     From  time to time,  the  Principal  Underwriter  may  provide  promotional
incentives,  including  reallowance of up to the entire sales charge, to certain
dealers  whose  representatives  have sold or are  expected to sell  significant
amounts  of a  Fund.  In  addition,  from  time to  time,  dealers  may  receive
additional  cash  payments.   The  Principal  Underwriter  may  provide  written
information to dealers with whom it has dealer  agreements that relates to sales
incentive campaigns conducted by such dealers for their  representatives as well
as financial  assistance in connection with pre-approved  seminars,  conferences
and advertising.  No such programs or additional compensation will be offered to
the extent they are  prohibited by the laws of any state or any  self-regulatory
agency such as the National  Association of Securities  Dealers,  Inc. ("NASD").
Dealers  to whom  substantially  the  entire  sales  charge on Class A shares is
reallowed  may be deemed to be  underwriters  as that term is defined  under the
Securities Act of 1933.

     The  Principal  Underwriter  may, at its own expense,  pay  concessions  in
addition to those  described  above to dealers  that  satisfy  certain  criteria
established  from time to time by the Principal  Underwriter.  These  conditions
relate to  increasing  sales of  shares of the  Keystone  funds  over  specified
periods and certain other factors.  Such payments may, depending on the dealer's
satisfaction of the required  conditions,  be periodic and may be up to 0.25% of
the value of shares sold by such dealer.

     The Principal  Underwriter  may also pay a transaction fee (up to the level
of payments  allowed to dealers for the sale of shares,  as described  above) to
banks and other financial services firms that facilitate  transactions in shares
of a Fund for their clients. The Glass-Steagall Act currently limits the ability
of a depository  institution  (such as a  commercial  bank or a savings and loan
association) to become an underwriter or distributor of securities. In the event
the  Glass-Steagall  Act is  deemed to  prohibit  depository  institutions  from
accepting  payments under the  arrangement  described  above, or should Congress
relax current  restrictions  on depository  institutions,  the Board of Trustees
will consider what action, if any, is appropriate.

     In  addition,  state  securities  laws on this  issue may  differ  from the
interpretations  of  federal  law  expressed  herein,  and banks  and  financial
institutions may be required to register as dealers pursuant to state law.

DISTRIBUTION PLANS

     As discussed above, each Fund bears some of the costs of selling its shares
under  Distribution Plans adopted with respect to its Class A, Class B and Class
C shares pursuant to Rule 12b-1 under the 1940 Act.

     The NASD  currently  limits  the  amount  that a Fund may pay  annually  in
distribution costs for the sale of its shares and shareholder  service fees. The
NASD limits annual  expenditures to 1% of the aggregate  average daily net asset
value of its shares, of which 0.75% may be used to pay such  distribution  costs
and 0.25% may be used to pay shareholder  service fees. The NASD also limits the
aggregate  amount  that a Fund may pay for such  distribution  costs to 6.25% of
gross  share  sales  since the  inception  of a 12b-1  Distribution  Plan,  plus
interest at the prime rate plus 1% on such amounts (less any contingent deferred
sales  charges paid by  shareholders  to the  Principal  Underwriter)  remaining
unpaid from time to time.

     The Principal Underwriter intends, but is not obligated, to continue to pay
or  accrue  distribution  charges  incurred  in  connection  with  the  Class  B
Distribution  Plans that exceed current annual payments permitted to be received
by the Principal  Underwriter from a Fund. The Principal  Underwriter intends to
seek full  payment of such charges from a Fund  (together  with annual  interest
thereon at the prime rate plus one  percent)  at such time in the future as, and
to the extent  that,  payment  thereof  by a Fund would be within the  permitted
limits.

     If the FUND's  Independent  Trustees  authorize such  payments,  the effect
would be to extend the period of time  during  which the FUND incurs the maximum
amount of costs  allowed  by a  Distribution  Plan.  If a  Distribution  Plan is
terminated,  the Principal Underwriter will ask the Independent Trustees to take
whatever action they deem appropriate  under the  circumstances  with respect to
payment of such amounts.

     In connection with financing its distribution costs,  including  commission
advances  to  dealers  and  others,  the  Principal  Underwriter  has  sold to a
financial  institution  substantially all of its 12b-1 fee collection rights and
contingent  deferred sales charge collection rights in respect of Class B shares
sold during the two-year period commencing  approximately June 1, 1995. The FUND
has  agreed  not to reduce  the rate of payment of 12b-1 fees in respect of such
Class B shares unless it terminates such shares'  Distribution  Plan completely.
If it terminates  such  Distribution  Plan,  the FUND may be subject to possible
adverse distribution consequences.

     Each of the Distribution Plans may be terminated at any time by vote of the
Independent  Trustees or by vote of a majority of the outstanding  voting shares
of the respective class.

     Unreimbursed  distribution expenses at November 30, 1994 for Class B shares
were  $784,751  (6.87% of Class B net assets at November  30, 1994) and $862,192
(6.68% of Class B net assets at November  30, 1994) for the  California  Insured
Fund and the Missouri Tax Free Fund, respectively.

     Dealers or others may receive different levels of compensation depending on
which class of shares they sell.  Payments  pursuant to a Distribution  Plan are
included in the operating expenses of the class.

HOW TO REDEEM SHARES

     Your  shares of a Fund may be  redeemed  for cash at their net asset  value
upon written order by you to the FUND, c/o KIRC, and presentation to the FUND of
a properly  endorsed share  certificate if certificates  have been issued.  Your
signature(s)  on the  written  order  and  certificates  must be  guaranteed  as
described  below.  The redemption value of a Fund's share is its net asset value
per share  adjusted  for  fractions  of a cent and may be more or less than your
cost  depending  upon  changes  in the  value of a Fund's  portfolio  securities
between  purchase and redemption.  In order to redeem by telephone you must have
completed the authorization in your account application.

     The redemption  value equals the net asset value per share then  determined
and may be more or less than your cost  depending  upon  changes in the value of
the Fund's portfolio securities between purchase and redemption.

     If imposed,  the  deferred  sales  charge is deducted  from the  redemption
proceeds otherwise payable to you.

     At various  times,  the FUND may be requested to redeem shares for which it
has not yet  received  good  payment.  In such a case,  the FUND  will  mail the
redemption process upon clearance of the purchase check, which may take up to 15
days or more.  Any delay may be  avoided  by  purchasing  shares  either  with a
certified check or by Federal Reserve or bank wire of funds or by EFT.  Although
the mailing of a redemption  check or the wiring or EFT of  redemption  proceeds
may be delayed,  the  redemption  value will be  determined  and the  redemption
processed   in  the  ordinary   course  of  business   upon  receipt  of  proper
documentation.  In such a case, after the redemption and prior to the release of
the proceeds,  no appreciation  or  depreciation  will occur in the value of the
redeemed shares, and no interest will be paid on the redemption proceeds. If the
payment  of a  redemption  has been  delayed,  the  check  will be mailed or the
proceeds wired or sent EFT promptly after good payment has been collected.

     The FUND  computes  the amount due you at the close of the  Exchange at the
end of the day on which it has  received  all  proper  documentation  from  you.
Payment of the amount due on redemption less any applicable  contingent deferred
sales  charge (as  described  above) will be made within  seven days  thereafter
except as discussed herein.

     You may also redeem  your  shares  through  broker-dealers.  The  Principal
Underwriter,  acting as agent for the FUND,  stands ready to repurchase a Fund's
shares upon orders from dealers at the redemption value described above computed
on the day the  Principal  Underwriter  receives  the  order.  If the  Principal
Underwriter  has  received  proper  documentation,  it will  pay the  redemption
proceeds to the  broker-dealer  placing the order within seven days  thereafter.
The  Principal  Underwriter  charges  no fees for this  service.  However,  your
broker-dealer may do so.

     For your  protection,  SIGNATURES  ON  CERTIFICATES,  STOCK  POWERS AND ALL
WRITTEN  ORDERS OR  AUTHORIZATIONS  MUST BE GUARANTEED BY A U.S.  STOCK EXCHANGE
MEMBER,  A BANK OR OTHER  PERSONS  ELIGIBLE TO  GUARANTEE  SIGNATURES  UNDER THE
SECURITIES  ACT OF 1934 AND  KIRC'S  POLICIES.  The FUND and KIRC may waive this
requirement,  but may  also  require  additional  documents  in  certain  cases.
Currently,  the  requirement  for a  signature  guarantee  has  been  waived  on
redemptions of $50,000 or less where the account  address of record has been the
same for a minimum  period of 30 days.  The FUND and KIRC  reserve  the right to
withdraw this waiver at any time.

     If the FUND receives a redemption order, but you have not clearly indicated
the amount of money or number of shares of the Fund  involved,  the FUND  cannot
execute the order. In such cases, the FUND will request the missing  information
from you and process the order on the day such information is received.

TELEPHONE
     Under  ordinary  circumstances,  you may  redeem  up to  $50,000  from your
account by  telephone  by calling toll free  1-800-343-2898.  However,  you must
complete  the  Telephone  Redemption  section  of the  application  to enjoy the
telephone redemption privileges.

     In order to insure that instructions  received by KIRC are genuine when you
initiate a telephone  transaction,  you will be asked to verify certain criteria
specific to your  account.  At the  conclusion of the  transaction,  you will be
given a transaction number confirming your request,  and written confirmation of
your   transaction  will  be  mailed  the  next  business  day.  Your  telephone
instructions will be recorded.  Redemptions by telephone are allowed only if the
address and bank account of record have been the same for a minimum period of 30
days.

     If the  redemption  proceeds are less than  $2,500,  they will be mailed by
check. If they are $2,500 or more, they will be mailed,  wired or sent by EFT to
your previously designated bank account as you direct. If you do not specify how
you wish your redemption proceeds to be sent, they will be mailed by check.

     If you cannot reach the FUND by telephone, you should follow the procedures
for redeeming by mail or through a broker as set forth above.

SMALL ACCOUNTS
     Because of the high cost of maintaining  small accounts,  the FUND reserves
the right to redeem  your  account if its value has  fallen  below  $1,000,  the
current minimum  investment level, as a result of your redemptions (but not as a
result of market action). You will be notified in writing and allowed 60 days to
increase the value of your account to the minimum investment level.

REDEMPTIONS IN KIND
     If conditions  arise that would make it undesirable for the FUND to pay for
all redemptions in cash, the FUND may authorize  payment to be made in portfolio
securities or other property. The FUND has obligated itself,  however, under the
1940 Act to redeem for cash all shares of a Fund presented for redemption by any
one  shareholder  in any 90-day period up to the lesser of $250,000 or 1% of the
Fund's net  assets.  Securities  delivered  in payment of  redemptions  would be
valued at the same value  assigned to them in computing  the net asset value per
share  and,  to the  extent  permitted  by law,  would  be  readily  marketable.
Shareholders  receiving such  securities  would incur brokerage costs when these
securities are sold.

GENERAL
     The FUND reserves the right at any time to terminate, suspend or change the
terms of any redemption  method described in this prospectus,  except redemption
by mail,  and to impose or change fees including fees for services in connection
with exchanges.

     Except  as  otherwise  noted,  neither  the  FUND,  KIRC nor the  Principal
Underwriter  assumes  responsibility  for the  authenticity of any  instructions
received  by any of them  from a  shareholder  in  writing,  over  the  Keystone
Automated  Response Line ("KARL") or by telephone.  KIRC will employ  reasonable
procedures to confirm that  instructions  received over KARL or by telephone are
genuine.  Neither the FUND,  KIRC nor the Principal  Underwriter  will be liable
when  following  instructions  received  over  KARL or by  telephone  that  KIRC
reasonably believes to be genuine.

     The FUND may  temporarily  suspend  the right to redeem its shares when (1)
the Exchange is closed,  other than customary weekend and holiday closings;  (2)
trading on the  Exchange is  restricted;  (3) an  emergency  exists and the FUND
cannot dispose of its  investments or fairly  determine  their value; or (4) the
Securities and Exchange Commission so orders.

SHAREHOLDER SERVICES

     Details on all shareholder services may be obtained from KIRC by writing or
by calling toll free 1-800-343-2898.

KEYSTONE AUTOMATED RESPONSE LINE
     KARL offers you specific fund account  information and price,  total return
and  yield  quotations  as  well  as the  ability  to do  account  transactions,
including investments, exchanges and redemptions. You may access KARL by dialing
toll free 1-800-346-3858 on any touch-tone telephone, 24 hours a day, seven days
a week.

EXCHANGES
     If you have obtained the appropriate prospectus, you may exchange shares of
a Fund for shares of certain other  Keystone  America Funds and Keystone  Liquid
Trust ("KLT") as follows:

          Class A shares may be exchanged  for Class A shares of other  Keystone
     America Funds and Class A shares of KLT;

          Class B shares may be exchanged for the same type of Class B shares of
     other  Keystone  America  Funds and the same type of Class B shares of KLT;
     and

          Class C shares may be exchanged  for Class C shares of other  Keystone
     America Funds and Class C shares of KLT.

The  exchange  of Class B shares  and Class C shares  will not be  subject  to a
contingent  deferred  sales charge.  However,  if the shares being  tendered for
exchange are

     (1) Class A shares acquired in an NAV Purchase or otherwise without a front
end sales charge,

     (2)  Class B shares  that  have  been  held for less than 72 months or four
years, as the case may be, or

     (3) Class C shares that have been held for less than one year,

and are still  subject to a  deferred  sales charge, such charge will carry over
to the shares being acquired in the exchange transaction.

     You may  exchange  shares by calling toll free  1-800-343-2898,  by writing
KIRC or by calling KARL.  However,  you must  complete the  Telephone  Exchanges
section of the application to enjoy the telephone  exchange  privileges.  Shares
purchased by check are eligible  for exchange  after 15 days.  There is a $10.00
fee for each  exchange;  however,  there is no exchange fee for exchange  orders
received by the FUND directly from an individual shareholder over KARL. The FUND
reserves the right,  after providing  shareholders  with any required notice, to
change the terms of or to terminate this exchange offer,  including the right to
change the service charge for any exchange.

     Orders  to  exchange  a  certain   class  of  shares  of  a  Fund  for  the
corresponding class of shares of KLT will be executed by redeeming the shares of
the Fund and  purchasing  the  corresponding  class of  shares of KLT at the net
asset  value  of KLT  shares  next  determined  after  the  proceeds  from  such
redemption  become  available,  which  may  be  up  to  seven  days  after  such
redemption.  In all other cases, orders for exchanges received by the FUND prior
to 4:00  p.m.  eastern  time on any day the  FUND is open for  business  will be
executed  at the  respective  net  asset  values  determined  as of the close of
business that day. Orders for exchanges received after 4:00 p.m. eastern time on
any business day will be executed at the respective net asset values  determined
at the close of the next business day.

     An  excessive  number  of  exchanges  may be  disadvantageous  to the FUND.
Therefore,  the FUND, in addition to its right to reject any exchange,  reserves
the right to terminate the exchange  privilege of any shareholder who makes more
than five  exchanges  of  shares  of the Funds in a year or three in a  calendar
quarter.

     An exchange  order must comply with the  requirements  for a redemption  or
repurchase  order and must  specify  the dollar  value or number of shares to be
exchanged. Exchanges are subject to the minimum initial purchase requirements of
the fund being acquired.  An exchange  constitutes a sale for federal income tax
purposes.

     The exchange privilege is available only in states where shares of the fund
being acquired may legally be sold.

KEYSTONE AMERICA MONEY LINE
     Keystone  America Money Line eliminates the delay of mailing a check or the
expense of wiring  funds.  You must  request  the  service on your  application.
Keystone  America  Money Line allows you to  authorize  electronic  transfers of
money to  purchase  a Fund's  shares in any  amount  and to redeem up to $50,000
worth of a Fund's  shares.  You can use  Keystone  America  Money  Line  like an
"electronic  check" to move money  between your bank account and your account in
the FUND with one  telephone  call.  You must allow two business  days after the
call for the transfer to take place. For money recently invested, you must allow
normal check clearing time before redemption proceeds are sent to your bank.

     You may also arrange for  systematic  monthly or quarterly  investments  in
your Keystone America  account.  Once proper  authorization is given,  your bank
account will be debited to purchase shares in the Fund specified in your account
application.  You will receive  confirmation from the Principal  Underwriter for
every transaction.

     To change the amount of or terminate a Keystone  America Money Line service
(which could take up to 30 days), you must write to KIRC, P.O. Box 2121, Boston,
Massachusetts 02106-2121, and include your account number.

AUTOMATIC WITHDRAWAL PLAN
     Under an Automatic Withdrawal Plan, if your account for a Fund's shares has
a value of at least  $10,000,  you may arrange for regular  monthly or quarterly
fixed withdrawal payments. Each payment must be at least $100 and may be as much
as 1.5% per month or 4.5% per  quarter of the total net asset  value of the Fund
shares in your account when the Automatic  Withdrawal Plan is opened.  Excessive
withdrawals  may decrease or deplete the value of your  account.  Because of the
effect of the  applicable  sales  charge,  a Class A  investor  should  not make
continuous  purchases  of a Fund's  shares while  participating  in an Automatic
Withdrawal Program.

DOLLAR COST AVERAGING
     Through  dollar cost  averaging  you can invest a fixed dollar  amount each
month or each quarter in any Keystone  America Fund. This results in more shares
being  purchased when the selected  fund's net asset value is relatively low and
fewer shares being purchased when the fund's net asset value is relatively high,
which may cause a lower average cost per share than a less systematic investment
approach.

     Prior to participating in dollar cost averaging,  you must have established
an account in a Keystone  America Fund or a money market fund managed or advised
by Keystone.  You should  designate on the application the dollar amount of each
monthly or quarterly  investment (minimum $100) you wish to make and the fund in
which  the  investment  is to be  made.  Thereafter,  on  the  first  day of the
designated  month  an  amount  equal  to  the  specified  monthly  or  quarterly
investment will automatically be redeemed from your initial account and invested
in shares of the designated fund. If you are a Class A investor and paid a sales
charge on your  initial  purchase,  the shares  purchased  will be eligible  for
Rights of Accumulation  and the sales charge  applicable to the purchase will be
determined  accordingly.  In  addition,  the value of shares  purchased  will be
included in the total amount required to fulfill a Letter of Intent.  If a sales
charge was not paid on the initial  purchase,  a sales charge will be imposed at
the time of subsequent  purchases and the value of shares  purchased will become
eligible for Rights of Accumulation and Letters of Intent.

TWO DIMENSIONAL INVESTING
     You may elect to have income and capital gains distributions from any class
of Keystone America Fund shares you may own  automatically  invested to purchase
the same class of shares of any other Keystone America Fund. You may select this
service on the application and indicate the Keystone America Fund (s) into which
distributions  are to be  invested.  The  value  of  shares  purchased  will  be
ineligible for Rights of Accumulation and Letters of Intent.

OTHER SERVICES
     Under  certain  circumstances  you may,  within 30 days after a redemption,
reinstate  your account in the same class of shares that you redeemed at current
net asset value.

PERFORMANCE DATA

     From time to time a Fund may advertise "total return,"  "current yield" and
a "tax equivalent  yield." ALL FIGURES ARE BASED ON HISTORICAL  EARNINGS AND ARE
NOT INTENDED TO INDICATE FUTURE PERFORMANCE.  Total return and current yield are
computed separately for each class of shares of a Fund. Total return refers to a
Fund's  average  annual  compounded  rates  of  return  over  specified  periods
determined by comparing the initial amount invested in a particular class to the
ending  redeemable  value  of  that  amount.   The  resulting  equation  assumes
reinvestment  of all  dividends and  distributions  and deduction of the maximum
sales charge and all recurring  charges,  if any,  applicable to all shareholder
accounts. The exchange fee is not included in the calculation.

     Current yield quotations  represent the yield on an investment for a stated
30-day period computed by dividing net investment income earned per share during
the base period by the maximum  offering  price per share on the last day of the
base period.  Such yield will include  income from sources other than  municipal
obligations, if any.

     Tax equivalent yield is, in general,  the current yield divided by a factor
equal to one minus a stated  income  tax rate and  reflects  the yield a taxable
investment  would  have to  achieve  in order to equal on an  after-tax  basis a
tax-exempt yield.

     Any  given  yield  or  total  return  quotation  should  not be  considered
representative of a Fund's yield or total return for any future period.

     The FUND may also  include  comparative  performance  information  for each
class of shares when  advertising or marketing the FUND's  shares,  such as data
from Lipper Analytical Services, Inc., Morningstar,  Inc.,  CDS-Weisenberger and
Value Line or other industry publications.

FUND SHARES

     The  FUND  currently  issues  shares  of  two  separate  series  evidencing
interests in different portfolio securities.  Generally,  each Fund issues three
classes of shares.  The FUND is authorized to issue additional series or classes
of shares.  Shares of a Fund participate in dividends and distributions and have
equal voting,  liquidation and other rights with other shares of the Fund except
that (1) expenses related to the distribution of each class of shares,  or other
expenses that the Board of Trustees may designate as class  expenses,  from time
to time, are borne solely by each class;  (2) each class of shares has exclusive
voting  rights  with  respect  to its  Distribution  Plan;  (3) each  class  has
different  exchange  privileges;  and (4) each class  generally  has a different
designation.  When  issued  and paid for,  the shares of each Fund will be fully
paid and  nonassessable  by the FUND.  Shares of each Fund may be  exchanged  as
explained  under  "Shareholder  Services,"  but will  have no other  preference,
conversion,  exchange or preemptive rights. Shares are redeemable,  transferable
and freely assignable as collateral. There are no sinking fund provisions.

     Shareholders  of a Fund are  entitled to one vote for each full share owned
and fractional votes for fractional  shares on all matters subject to Fund vote.
Shares of a Fund vote together except when required by law to vote separately by
class.  The FUND does not have  annual  meetings.  The FUND  will  have  special
meetings,  from time to time,  as required  under its  Declaration  of Trust and
under the 1940 Act. As provided in the FUND's Declaration of Trust, shareholders
have the right to remove  Trustees by an  affirmative  vote of two-thirds of the
outstanding  shares. A special meeting of the shareholders will be held when 10%
of the  outstanding  shares  request a meeting  for the  purpose  of  removing a
Trustee.  As prescribed by Section  16(c) of the 1940 Act,  shareholders  may be
eligible for shareholder communication assistance in connection with the special
meeting.

     Under Massachusetts law, it is possible that a FUND shareholder may be held
personally liable for the FUND's  obligations.  The FUND's  Declaration of Trust
provides,  however,  that  shareholders  shall not be  subject  to any  personal
liability  for the FUND's  obligations  and provides  indemnification  from FUND
assets for any shareholder held personally liable for the FUND's obligations.

ADDITIONAL INFORMATION

     KIRC, located at 101 Main Street, Cambridge, Massachusetts 02142-1519, is a
wholly-owned subsidiary of Keystone. As previously mentioned, KIRC serves as the
FUND's transfer agent and dividend disbursing agent.

     When the FUND determines from its records that more than one account in the
FUND is registered in the name of a shareholder or shareholders  having the same
address,  upon notice to those  shareholders,  the FUND intends,  when an annual
report or a semi-annual report of the FUND is required to be furnished,  to mail
one copy of such report to that address.

     Except as otherwise  stated in this prospectus or required by law, the FUND
reserves  the right to change the terms of the offer  stated in this  prospectus
without shareholder  approval,  including the right to impose or change fees for
services provided.
<PAGE>

                         ADDITIONAL INVESTMENT INFORMATION

CORPORATE AND MUNICIPAL BOND RATINGS

S&P CORPORATE AND MUNICIPAL BOND RATINGS

A.  MUNICIPAL NOTES

     An S&P note rating reflects the liquidity  concerns and market access risks
unique to notes.  Notes due in three  years or less will  likely  receive a note
rating.  Notes maturing  beyond three years will most likely receive a long-term
debt rating. The following criteria are used in making that assessment:

     1.  amortization  schedule (the larger the final maturity relative to other
maturities the more likely it will be treated as a note); and

     2. source of payment (the more dependent the issue is on the market for its
refinancing, the more likely it will be treated as a note).

     Note ratings are as follows:

     1. SP-1 -- Strong  capacity to pay  principal  and  interest.  Those issues
        determined  to possess a very  strong  capacity  to pay debt  service is
        given a plus (+) designation.

     2. SP-2 -- Satisfactory  capacity to pay principal and interest,  with some
        vulnerability  to adverse  financial and economic changes over the terms
        of the notes.

     3. SP-3 -- Speculative capacity to pay principal and interest.

B.  TAX EXEMPT DEMAND BONDS

     S&P assigns  "dual"  ratings to all long-term debt issues that have as part
of their provisions a demand or double feature.

     The first rating  addresses  the  likelihood  of repayment of principal and
interest as due, and the second rating  addresses only the demand  feature.  The
long-term  debt  rating  symbols  are used for  bonds to  denote  the  long-term
maturity  and the  commercial  paper  rating  symbols are used to denote the put
option (for example,  "AAA/A-1+"). For the newer "demand notes," S&P note rating
symbols,  combined with the commercial paper symbols, are used (for example, "SP
- -- 1+/A-1+").

C.  CORPORATE AND MUNICIPAL BOND RATINGS

     An S&P  corporate or municipal  bond rating is a current  assessment of the
creditworthiness  of an  obligor,  including  obligors  outside  the U.S.,  with
respect to a specific  obligation.  This assessment may take into  consideration
obligors such as guarantors, insurers or lessees. Ratings of foreign obligors do
not take into account currency exchange and related  uncertainties.  The ratings
are based on current information furnished by the issuer or obtained by S&P from
other sources it considers reliable.

     The ratings are based, in varying degrees, on the following considerations:

          1. likelihood of default capacity and willingness of the obligor as to
     the timely  payment of interest and  repayment  of principal in  accordance
     with the terms of the obligation;

          2. nature of and provisions of the obligation; and

          3. protection  afforded by and relative  position of the obligation in
     the event of bankruptcy  reorganization or other arrangement under the laws
     of bankruptcy and other laws affecting creditors' rights.

     PLUS (+) OR MINUS  (-):  To provide  more  detailed  indications  of credit
quality, ratings from "AA" to "BBB" may be modified by the addition of a plus or
minus sign to show relative standing within the major rating categories.

     A provisional  rating is sometimes  used by S&P. It assumes the  successful
completion of the project  being  financed by the debt being rated and indicates
that payment of debt service  requirements is largely or entirely dependent upon
the successful and timely completion of the project. This rating, however, while
addressing  credit  quality  subsequent to  completion of the project,  makes no
comment on the  likelihood  of, or the risk of default  upon  failure  of,  such
completion.

D.  BOND RATINGS ARE AS FOLLOWS:

     1. AAA -- Debt rated AAA has the highest rating  assigned by S&P.  Capacity
to pay interest and repay principal is extremely strong.

     2. AA -- Debt rated AA has a very strong capacity to pay interest and repay
principal and differs from the higher rated issues only in small degree.

     3. A -- Debt  rated A has a  strong  capacity  to pay  interest  and  repay
principal  although it is somewhat more  susceptible  to the adverse  effects of
changes in  circumstances  and  economic  conditions  than debt in higher  rated
categories.

     4. BBB -- Debt rated BBB is regarded as having an adequate  capacity to pay
interest and repay principal.  Whereas it normally exhibits adequate  protection
parameters,  adverse  economic  conditions  or changing  circumstances  are more
likely to lead to a weakened  capacity to pay interest and repay  principal  for
debt in this category than in higher rated categories.

MOODY'S CORPORATE AND MUNICIPAL BOND RATINGS

A.  MUNICIPAL NOTES

     A Moody's rating for municipal  short-term  obligations  will be designated
Moody's  Investment  Grade or (MIG).  These  ratings  recognize  the  difference
between  short-term  credit  risk and  long-term  risk.  Factors  affecting  the
liquidity of the borrower and the short-term  cyclical  elements are critical in
short-term ratings.

     A short-term rating may also be assigned on issues with a demand feature --
variable rate demand obligation (VRDO). Such ratings will be designated as VMIG.
Short-term  ratings on issues with demand features are differentiated by the use
of the VMIG symbol to reflect  such  characteristics  as payment  upon  periodic
demand  rather than fixed  maturity  dates and payment  relying on the  external
liquidity.

     The note ratings are as follows:

     1. MIG1/VMIG1 This designation  denotes the best quality.  There is present
strong  protection by  established  cash flows,  superior  liquidity  support or
demonstrated broadbased access to the market for refinancing.

     2. MIG2/VMIG2 This designation denotes high quality.  Margins of protection
are ample although not so large as in the preceding group.

     3. MIG3/VMIG3 This  designation  denotes  favorable  quality.  All security
elements are accounted for but there is lacking the  undeniable  strength of the
preceding  grades.  Liquidity and cash flow  protection may be narrow and market
access for refinancing is likely to be less well established.

     4.  MIG4/VMIG4  This  designation  denotes  adequate  quality.   Protection
commonly regarded as required of an investment  security is present and although
not distinctly or predominantly speculative, there is specific risk.

B.  CORPORATE AND MUNICIPAL BOND RATINGS

     1. Aaa -- Bonds rated Aaa are judged to be of the best quality.  They carry
the smallest degree of investment  risk and are generally  referred to as "gilt-
edge." Interest payments are protected by a large or by an exceptionally  stable
margin and principal is secure. While the various protective elements are likely
to change,  such changes as can be  visualized  are most  unlikely to impair the
fundamentally strong position of such issues.

     2. Aa -- Bonds rated Aa are judged to be of high quality by all  standards.
Together with the Aaa group,  they  comprise  what are  generally  known as high
grade  bonds.  They are rated  lower  than the best  bonds  because  margins  of
protection may not be as large as in Aaa securities or fluctuation of protective
elements may be of greater amplitude or there may be other elements present that
make the long term risks appear somewhat larger than in Aaa securities.

     3. A -- Bonds rated A possess many favorable investment  attributes and are
to be considered as upper medium grade  obligations.  Factors giving security to
principal and interest are considered adequate, but elements may be present that
suggest a susceptibility to impairment sometime in the future.

     4. Baa -- Bonds rated Baa are  considered  to be medium grade  obligations,
i.e., they are neither highly  protected nor poorly secured.  Interest  payments
and principal  security appear adequate for the present,  but certain protective
elements may be lacking or may be  characteristically  unreliable over any great
length of time. Such bonds lack outstanding  investment  characteristics  and in
fact have speculative characteristics as well.

     Moody's  applies  numerical  modifiers,  1, 2 and 3 in each generic  rating
classification  from Aa through Baa in its  corporate  bond rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating category;  the modifier 2 indicates a mid-range ranking; and the modifier
3  indicates  that  the  issue  ranks in the  lower  end of its  generic  rating
category.

     CON.  (--) --  Municipal  bonds  for which the  security  depends  upon the
completion  of  some  act  or  the  fulfillment  of  some  condition  are  rated
conditionally.  These  are bonds  secured  by (1)  earnings  of  projects  under
construction,  (2) earnings of projects unseasoned in operation experience,  (3)
rentals that begin when facilities are completed,  or (4) payments to which some
other limiting condition attaches.  Parenthetical rating denotes probable credit
stature upon completion of construction or elimination of basis of condition.

     Those  municipal  bonds in the Aa, A, and Baa groups that Moody's  believes
possess the strongest investment  attributes are designated by the symbols Aa 1,
A 1, and Baa 1.

FITCH CORPORATE AND MUNICIPAL RATINGS

A.  MUNICIPAL NOTES

     Fitch's  short-term  ratings apply to debt  obligations that are payable on
demand or have  original  maturities  of  generally  three years or less.  These
include  commercial  paper,  certificates  of deposit,  medium-term  notes,  and
municipal and investment notes. The short-term rating places greater emphasis on
the  existence of liquidity  necessary  to meet the  issuer's  obligations  in a
timely manner.

     The note ratings are as follows:

     1. F-1+  Exceptionally  Strong Credit Quality.  Issues assigned this rating
are regarded as having the strongest degree of assurance for timely payment.

     2. F-1 Very Strong Credit  Quality.  Issues assigned this rating reflect an
assurance of  timely  payment only  slightly  less in degree  than  issues rated
F-1+.

     3. F-2 Good Credit Quality. Issues assigned this rating have a satisfactory
degree of assurance for timely payment, but the margin of safety is not as great
as for issues assigned the two higher ratings.

     4.  F-3  Fair   Credit   Quality.   Issues   assigned   this   rating  have
characteristics  suggesting  that the degree of assurance for timely  payment is
adequate,  however, near-term adverse changes could cause these securities to be
rated below investment grade.

B.  CORPORATE AND MUNICIPAL BOND RATINGS

AAA --  Bonds  considered  to be  investment  grade  and of the  highest  credit
quality.  The obligor has an  exceptionally  strong  ability to pay interest and
repay  principal,  which is unlikely to be  affected by  reasonably  foreseeable
events.

AA -- Bonds  considered to be investment  grade and of very high credit quality.
The  obligor's  ability to pay  interest  and repay  principal  is very  strong,
although not quite as strong as bonds rated AAA.

A -- Bonds  considered to be investment  grade and of high credit  quality.  The
obligor's  ability to pay  interest  and repay  principal  is  considered  to be
strong, but may be more vulnerable to adverse changes in economic conditions and
circumstances than bonds with higher ratings.

BBB -- Bonds  considered  to be  investment  grade  and of  satisfactory  credit
quality. The obligor's ability to pay interest and repay principal is considered
to be  adequate.  Adverse  changes in  economic  conditions  and  circumstances,
however,  are more likely to have adverse  impact on these bonds,  and therefore
impair timely payment.  The likelihood that the ratings of these bonds will fall
below investment grade is higher than for bonds with higher ratings.

PLUS (+) OR MINUS  (-)  signs are used  with a rating  symbol  to  indicate  the
relative position of a credit within the rating category.  Plus and minus signs,
however, are not used in the AAA category.

A CONDITIONAL  rating is premised on the  successful  completion of a project or
the occurrence of a specific event.

     Debt  rated  BB,  B,  CCC,  CC and C by S&P is  regarded,  on  balance,  as
predominantly  speculative  with  respect to capacity to pay  interest and repay
principal in  accordance  with the terms of the  obligation.  BB  indicates  the
lowest degree of speculation and C the highest degree of speculation. While such
debt will likely have some  quality and  protective  characteristics,  these are
outweighed by large uncertainties or major risk exposures to adverse conditions.
Debt rated C1 by S&P is debt (income  bonds) on which no interest is being paid.
Debt rated D by S&P is in default and payment of interest  and/ or  repayment of
principal  is in  arrears.  The Funds  intend to invest in D-rated  debt only in
cases where in Keystone's  judgment there is a distinct  prospect of improvement
in  the  issuer's   financial   position  as  a  result  of  the  completion  of
reorganization  or  otherwise.  Bonds that are rated CAA by Moody's  are of poor
standing.  Such  issues may be in default  or there may be present  elements  of
danger with respect to principal or interest. Bonds that are rated CA by Moody's
represent  obligations  that are  speculative in a high degree.  Such issues are
often in default or have other  market  shortcomings.  Bonds that are rated C by
Moody's  are the lowest  rated  bonds,  and issues so rated can be  regarded  as
having extremely poor prospects of ever attaining any real investment  standing.
Debt  rated BB, B, CCC,  CC,  and C by Fitch is  regarded  as  speculative  with
respect to capacity to pay interest and repay  principal in accordance  with the
terms of the  obligation.  BB indicates the lowest degree of  speculation  and C
represents the highest degree of  speculation.  Debt rated DDD, DD, and D are in
default on interest and/or principal payments.

DESCRIPTIONS OF CERTAIN TYPES OF INVESTMENTS AND INVESTMENT TECHNIQUES AVAILABLE
TO THE FUNDS

OBLIGATIONS OF FOREIGN BRANCHES OF UNITED STATES BANKS
     The  obligations  of  foreign   branches  of  U.S.  banks  may  be  general
obligations  of the parent bank in addition  to the  issuing  branch,  or may be
limited  by the terms of a specific  obligation  and by  government  regulation.
Payment of interest and principal upon these obligations may also be affected by
governmental action in the country of domicile of the branch (generally referred
to as sovereign  risk).  In addition,  evidences of ownership of such securities
may be held outside the U.S.  and a Fund may be subject to the risks  associated
with the holding of such property  overseas.  Examples of  governmental  actions
would be the imposition of currency controls, interest limitations,  withholding
taxes, seizure of assets or the declaration of a moratorium.  Various provisions
of federal law governing  domestic  branches do not apply to foreign branches of
domestic banks.

OBLIGATIONS OF UNITED STATES BRANCHES OF FOREIGN BANKS
     Obligations of U.S. branches of foreign banks may be general obligations of
the parent  bank in addition  to the  issuing  branch,  or may be limited by the
terms of a specific obligation and by federal and state regulation as well as by
governmental  action  in the  country  in which  the  foreign  bank has its head
office. In addition,  there may be less publicly  available  information about a
U.S. branch of a foreign bank than about a domestic bank.

MASTER DEMAND NOTES
     Master demand notes are unsecured obligations that permit the investment of
fluctuating  amounts by a Fund at varying  rates of interest  pursuant to direct
arrangements  between the Fund,  as lender,  and the issuer as borrower.  Master
demand  notes may  permit  daily  fluctuations  in the  interest  rate and daily
changes in the amounts  borrowed.  A Fund has the right to  increase  the amount
under the note at any time up to the full amount provided by the note agreement,
or to decrease  the amount.  The borrower may repay up to the full amount of the
note without  penalty.  Notes acquired by a Fund permit a Fund to demand payment
of  principal  and  accrued  interest  at any time (on not more than seven days'
notice).  Notes  acquired by a Fund may have  maturities  of more than one year,
provided  that (1) the Fund is  entitled  to payment of  principal  and  accrued
interest  upon not more than seven days notice,  and (2) the rate of interest on
such notes is adjusted  automatically at periodic  intervals which normally will
not exceed 31 days,  but may extend up to one year.  The notes will be deemed to
have a maturity equal to the longer of the period remaining to the next interest
rate  adjustment or the demand notice  period.  Because these types of notes are
direct lending  arrangements  between the lender and borrower,  such instruments
are not  normally  traded  and there is no  secondary  market  for these  notes,
although they are  redeemable  and thus  repayable by the borrower at face value
plus  accrued  interest at any time.  Accordingly,  a Fund's  right to redeem is
dependent  on the  ability of the  borrower  to pay  principal  and  interest on
demand. In connection with master demand note arrangements,  Keystone considers,
under standards  established by the Board of Trustees,  earning power, cash flow
and other  liquidity  ratios of the borrower and will monitor the ability of the
borrower to pay principal and interest on demand.  These notes are not typically
rated by credit rating agencies. Unless rated, a Fund may invest in them only if
at the time of an  investment  the issuer  meets the  criteria  established  for
commercial paper discussed in the statement of additional information.

REPURCHASE AGREEMENTS
     A Fund may  enter  into  repurchase  agreements  with  member  banks of the
Federal Reserve System having at least $1 billion in assets,  primary dealers in
U.S. government securities or other financial  institutions believed by Keystone
to  be  creditworthy.  Such  persons  must  be  registered  as  U.S.  government
securities  dealers  with  appropriate  regulatory  organizations.   Under  such
agreements,  the bank, primary dealer or other financial institution agrees upon
entering into the contract to repurchase the security at a mutually  agreed upon
date and price,  thereby determining the yield during the term of the agreement.
This results in a fixed rate of return insulated from market fluctuations during
such period. Under a repurchase agreement, the seller must maintain the value of
the securities  subject to the agreement at not less than the repurchase  price,
such  value  being  determined  on a  daily  basis  by  marking  the  underlying
securities  to their  market  value.  Although  the  securities  subject  to the
repurchase  agreement  might bear  maturities  exceeding a year,  the Funds only
intend to enter into repurchase  agreements that provide for settlement within a
year and usually within seven days.  Securities subject to repurchase agreements
will be held by the  FUND's  custodian  or in the  Federal  Reserve  book  entry
system.  The  Funds  do not  bear  the  risk of a  decline  in the  value of the
underlying security unless the seller defaults under its repurchase  obligation.
In the  event of a  bankruptcy  or other  default  of a seller  of a  repurchase
agreement,  a Fund could  experience  both delays in liquidating  the underlying
securities  and  losses,  including  (1)  possible  declines in the value of the
underlying  securities  during  the period  while the Fund seeks to enforce  its
rights thereto;  (2) possible  subnormal  levels of income and lack of access to
income during this period;  and (3) expenses of enforcing its rights.  The Board
of Trustees has established  procedures to evaluate the creditworthiness of each
party  with  whom  each  Fund  enters  into  repurchase  agreements  by  setting
guidelines  and  standards  of review for  Keystone  and  monitoring  Keystone's
actions with regard to repurchase agreements.

REVERSE REPURCHASE AGREEMENTS
     Under a reverse  repurchase  agreement,  a Fund would sell  securities  and
agree to  repurchase  them at a mutually  agreed upon date and price.  Each Fund
intends to enter into reverse repurchase agreements to avoid otherwise having to
sell  securities  during   unfavorable   market  conditions  in  order  to  meet
redemptions.  At the time a Fund enters into a reverse repurchase agreement,  it
will establish a segregated account with the FUND's custodian  containing liquid
assets such as U.S.  government  securities or other high grade debt  securities
having a value not less than the repurchase price (including  accrued  interest)
and will  subsequently  monitor the account to ensure such value is  maintained.
Reverse  repurchase  agreements  involve  the risk that the market  value of the
securities  that a Fund  is  obligated  to  repurchase  may  decline  below  the
repurchase  price.  Borrowing  and  reverse  repurchase  agreements  magnify the
potential for gain or loss on the portfolio securities of a Fund and, therefore,
increase the  possibility  of  fluctuation  in the Fund's net asset value.  Such
practices may constitute leveraging.  In the event the buyer of securities under
a reverse repurchase  agreement files for bankruptcy or becomes insolvent,  such
buyer or its trustee or receiver  may receive an  extension of time to determine
whether to enforce a Fund's  obligation to  repurchase  the  securities  and the
Fund's use of the proceeds of the reverse  repurchase  agreement may effectively
be  restricted  pending  such  determination.  The staff of the  Securities  and
Exchange  Commission  ("SEC")  has taken the  position  that the 1940 Act treats
reverse  repurchase  agreements  as being  included in the  percentage  limit on
borrowings imposed on a Fund.

"WHEN ISSUED" SECURITIES
     Each Fund may also purchase and sell  securities  and  currencies on a when
issued and delayed delivery basis. When issued or delayed delivery  transactions
arise when securities or currencies are purchased or sold by a Fund with payment
and delivery taking place in the future in order to secure what is considered to
be an advantageous  price and yield to the Fund at the time of entering into the
transaction.   When  a  Fund  engages  in  when  issued  and  delayed   delivery
transactions,  the Fund  relies on the buyer or  seller,  as the case may be, to
consummate  the  sale.  Failure  to do so  may  result  in a  Fund  missing  the
opportunity  to  obtain a price or yield  considered  to be  advantageous.  When
issued and  delayed  delivery  transactions  may be expected to occur a month or
more before delivery is due.  However,  no payment or delivery is made by a Fund
until it receives payment or delivery from the other party to the transaction. A
separate  account  of  liquid  assets  equal  to  the  value  of  such  purchase
commitments  will be maintained  until payment is made.  When issued and delayed
delivery  agreements  are  subject  to risks from  changes  in value  based upon
changes in the level of interest rates, currency rates and other market factors,
both  before  and after  delivery.  A Fund does not  accrue  any  income on such
securities  or  currencies  prior to their  delivery.  To the  extent  each Fund
engages  in  when  issued  and  delayed  delivery  transactions,  it  will do so
consistent with its investment objective and policies and not for the purpose of
investment leverage.

LOANS OF SECURITIES TO BROKER-DEALERS
     Each Fund may lend securities to brokers and dealers pursuant to agreements
requiring  that the loans be  continuously  secured by cash or securities of the
U.S. government,  its agencies or instrumentalities,  or any combination of cash
and such  securities,  as collateral equal at all times in value to at least the
market value of the securities  loaned.  Such securities  loans will not be made
with  respect  to a  Fund  if as a  result  the  aggregate  of  all  outstanding
securities  loans  exceeds 15% of the value of the Fund's  total assets taken at
their current value.  A Fund  continues to receive  interest or dividends on the
securities  loaned and  simultaneously  earns  interest on the investment of the
cash loan  collateral in U.S.  Treasury notes,  certificates  of deposit,  other
high-grade,   short-term  obligations  or  interest  bearing  cash  equivalents.
Although voting rights attendant to securities loaned pass to the borrower, such
loans may be called at any time and will be called so that the securities may be
voted by a Fund if, in the opinion of the Fund, a material  event  affecting the
investment  is to  occur.  There may be risks of delay in  receiving  additional
collateral or in recovering the securities  loaned or even loss of rights in the
collateral  should the borrower of the securities  fail  financially.  Loans may
only  be made to  borrowers  deemed  to be of  good  standing,  under  standards
approved  by the Board of  Trustees,  when the income to be earned from the loan
justifies the attendant risks.

DERIVATIVES
     Each Fund may use  derivatives in furtherance of its investment  objective.
Derivatives are financial  contracts whose value depends on, or is derived from,
the value of an underlying asset,  reference rate or index. These assets, rates,
and indices may include bonds, stocks, mortgages,  commodities,  interest rates,
currency exchange rates, bond indices and stock indices. Derivatives can be used
to earn income or protect  against  risk, or both.  For example,  one party with
unwanted  risk may agree to pass that risk to  another  party who is  willing to
accept the risk, the second party being  motivated,  for example,  by the desire
either to earn income in the form of a fee or premium from the first  party,  or
to reduce its own unwanted  risk by  attempting to pass all or part of that risk
to the first party.

     Derivatives  can be used by investors  such as the Funds to earn income and
enhance  returns,  to hedge or adjust  the risk  profile of the  portfolio,  and
either in place of more traditional  direct investments or to obtain exposure to
otherwise  inaccessible  markets.  Each Fund is permitted to use derivatives for
one or more of these  purposes.  Each of these uses entails greater risk than if
derivatives  were used  solely  for  hedging  purposes.  The  Funds use  futures
contracts and related options for hedging  purposes.  Derivatives are a valuable
tool which,  when used  properly,  can provide  significant  benefit to a Fund's
shareholders.  Keystone is not an aggressive user of derivatives with respect to
the Funds.  However,  a Fund may take  positions in those  derivatives  that are
within its investment policies if, in Keystone's  judgement,  this represents an
effective response to current or anticipated  market conditions.  Keystone's use
of  derivatives  is subject to continuous  risk  assessment and control from the
standpoint of a Fund's investment objectives and policies.

     Derivatives  may  be (1)  standardized,  exchange-traded  contracts  or (2)
customized, privately negotiated contracts.  Exchange-traded derivatives tend to
be more liquid and  subject to less  credit  risk than those that are  privately
negotiated.

     There  are four  principal  types of  derivative  instruments  --  options,
futures,  forwards  and swaps -- from  which  virtually  any type of  derivative
transaction can be created.  Further information  regarding options and futures,
is provided  later in this  section and is provided in the FUND's  statement  of
additional information.

     Debt  instruments that incorporate one or more of these building blocks for
the  purpose of  determining  the  principal  amount of and/or  rate of interest
payable  on  the  debt   instruments   are  often  referred  to  as  "structured
securities."  An  example  of  this  type  of  structured  security  is  indexed
commercial paper. The term is also used to describe certain securities issued in
connection  with  the   restructuring  of  certain  foreign   obligations.   See
"Structured  Securities"  below. The term "derivative" is also sometimes used to
describe  securities  involving  rights to a portion  of the cash  flows from an
underlying  pool of  mortgages  or other  assets from which  payments are passed
through to the owner of, or that collateralize, the securities.

     While the judicious use of derivatives by experienced  investment  managers
such as Keystone can be  beneficial,  derivatives  also involve risks  different
from,  and,  in  certain  cases,  greater  than,  the  risks  presented  by more
traditional  investments.  Following is a general  discussion of important  risk
factors and issues  concerning  the use of  derivatives  that  investors  should
understand before investing in a Fund.

* Market Risk -- This is the general risk attendant to all investments  that the
  value of a particular  investment  will  decline or otherwise  change in a way
  detrimental to a Fund's interest.

* Management Risk -- Derivative products are highly specialized instruments that
  require   investment   techniques  and  risk  analyses  different  from  those
  associated  with  stocks  and  bonds.  The  use of a  derivative  requires  an
  understanding  not  only  of  the  underlying  instrument,  but  also  of  the
  derivative  itself,  without the benefit of observing the  performance  of the
  derivative under all possible market  conditions.  In particular,  the use and
  complexity of  derivatives  require the  maintenance  of adequate  controls to
  monitor the  transactions  entered into, the ability to assess the risk that a
  derivative  adds to a Fund's  portfolio  and the  ability to  forecast  price,
  interest rate or currency exchange rate movements correctly.

* Credit  Risk -- This is the risk that a loss may be  sustained  by a Fund as a
  result of the failure of another party to a derivative (usually referred to as
  a  "counterparty")  to comply with the terms of the derivative  contract.  The
  credit  risk for  exchange  traded  derivatives  is  generally  less  than for
  privately  negotiated  derivatives,  since the  clearing  house,  which is the
  issuer  or  counterparty  to  each  exchange-traded  derivative,   provides  a
  guarantee of  performance.  This  guarantee  is  supported by a daily  payment
  system (i.e., margin requirements)  operated by the clearing house in order to
  reduce overall credit risk. For privately negotiated derivatives,  there is no
  similar   clearing  agency   guarantee.   Therefore,   a  Fund  considers  the
  creditworthiness of each counterparty to a privately negotiated  derivative in
  evaluating potential credit risk.

* Liquidity  Risk --  Liquidity  risk exists  when a  particular  instrument  is
  difficult to purchase or sell.  If a derivative  transaction  is  particularly
  large  or if the  relevant  market  is  illiquid  (as is the  case  with  many
  privately  negotiated  derivatives),  it may not be  possible  to  initiate  a
  transaction or liquidate a position at an advantageous price.

* Leverage Risk -- Since many  derivatives  have a leverage  component,  adverse
  changes  in the  value or level of the  underlying  asset,  rate or index  can
  result  in a loss  substantially  greater  than  the  amount  invested  in the
  derivative itself. In the case of swaps, the risk of loss generally is related
  to a notional principal amount,  even if the parties have not made any initial
  investment.  Certain  derivatives  have  the  potential  for  unlimited  loss,
  regardless of the size of the initial investment.

* Other Risks -- Other risks in using derivatives include the risk of mispricing
  or improper valuation and the inability of derivatives to correlate  perfectly
  with underlying  assets,  rates and indices.  Many derivatives,  in particular
  privately negotiated  derivatives,  are complex and often valued subjectively.
  Improper  valuations  can result in  increased  cash payment  requirements  to
  counterparties  or a loss  of  value  to a  Fund.  Derivatives  do not  always
  perfectly or even highly correlate or track the value of the assets,  rates or
  indices  they are  designed to closely  track.  Consequently,  a Fund's use of
  derivatives  may not always be an effective  means of, and sometimes  could be
  counterproductive to, furthering the Fund's investment objective.

OPTIONS TRANSACTIONS
     WRITING COVERED OPTIONS.  Each Fund may write (i.e., sell) covered call and
put options.  By writing a call option,  the Fund becomes  obligated  during the
term of the option to deliver the securities  underlying the option upon payment
of the exercise price. By writing a put option, a Fund becomes  obligated during
the term of the option to purchase the  securities  underlying the option at the
exercise  price if the option is exercised.  Each Fund also may write  straddles
(combinations of covered puts and calls on the same underlying security).

     Each Fund may only write  "covered"  options.  This means that so long as a
Fund is  obligated as the writer of a call  option,  it will own the  underlying
securities  subject  to the  option  or,  in the  case of call  options  on U.S.
Treasury bills, the Fund might own substantially similar U.S. Treasury bills. If
a Fund has written options against all of its securities which are available for
writing options,  the Fund may be unable to write  additional  options unless it
sells a portion of its portfolio holdings to obtain new securities against which
it can write  options.  If this were to occur,  higher  portfolio  turnover  and
correspondingly  greater  brokerage  commissions and other transaction costs may
result. However, the Funds do not expect that this will occur.

     Each Fund will be  considered  "covered"  with  respect  to a put option it
writes  if,  so long as it is  obligated  as the  writer of the put  option,  it
deposits and maintains with its custodian in a segregated  account liquid assets
having a value equal to or greater than the exercise price of the option.

     The principal reason for writing call or put options is to obtain,  through
a receipt of premiums,  a greater  current  return than would be realized on the
underlying  securities  alone.  A Fund receives a premium from writing a call or
put option, which it retains whether or not the option is exercised.  By writing
a call  option,  a Fund  might  lose the  potential  for gain on the  underlying
security  while the  option is open,  and by writing a put option the Fund might
become  obligated to purchase the underlying  security for more than its current
market price upon exercise.

     PURCHASING OPTIONS.  Each Fund may purchase put or call options,  including
purchasing put or call options for the purpose of offsetting  previously written
put or call options of the same series.

     If a Fund is unable to effect a closing  purchase  transaction with respect
to  covered  options  it has  written,  the  Fund  will  not be able to sell the
underlying  security or dispose of assets held in a segregated account until the
options expire or are exercised.

     An option  position  may be closed  out only in a  secondary  market for an
option of the same  series.  Although  a Fund  generally  will  write only those
options for which there appears to be an active  secondary  market,  there is no
assurance that a liquid secondary market will exist for any particular option at
any particular time, and for some options no secondary market may exist. In such
event, it might not be possible to effect a closing  transaction in a particular
option.

     Options on some  securities  are  relatively  new, and it is  impossible to
predict the amount of trading  interest that will exist in such  options.  There
can be no assurance that viable markets will develop or continue. The failure of
such markets to develop or continue could significantly  impair a Fund's ability
to use such options to achieve its investment objective.

     OPTIONS  TRADING  MARKETS.  Options in which each Fund will trade generally
are listed on national  securities  exchanges.  Exchanges  on which such options
currently  are traded  include the Chicago  Board  Options  Exchange and the New
York,  American,  Pacific  and  Philadelphia  Stock  Exchanges.  Options on some
securities  may not be  listed on any  Exchange,  but  traded  in the  over-the-
counter  market.  Options  traded in the  over-the-counter  market  involve  the
additional risk that securities dealers participating in such transactions could
fail to meet  their  obligations  to a Fund.  The use of  options  traded in the
over-the-counter  market may be subject to limitations  imposed by certain state
securities  authorities.  In  addition  to  the  limits  on its  use of  options
discussed herein, each Fund is subject to the investment  restrictions described
in this prospectus and in the statement of additional information.

     The staff of the SEC is of the view that the premiums  that a Fund pays for
the  purchase of unlisted  options,  and the value of  securities  used to cover
unlisted  options  written by a Fund,  are considered to be invested in illiquid
securities  or assets for the  purpose  of  calculating  whether  the Fund is in
compliance with its investment restriction relating to illiquid investments.

FUTURES TRANSACTIONS
     Each Fund may enter into currency and other financial futures contracts and
write options on such contracts.  Each Fund intends to enter into such contracts
and related options for hedging  purposes.  Each Fund will enter into futures on
securities  or  currencies or  index-based  futures  contracts in order to hedge
against  changes in interest or exchange rates or securities  prices.  A futures
contract on securities  or currencies is an agreement to buy or sell  securities
or currencies at a specified price during a designated month. A futures contract
on a securities  index does not involve the actual  delivery of securities,  but
merely  requires  the  payment  of a cash  settlement  based on  changes  in the
securities  index.  A Fund does not make  payment  or  deliver  securities  upon
entering into a futures contract.  Instead, it puts down a margin deposit, which
is adjusted to reflect  changes in the value of the contract and which continues
until the contract is terminated.

     Each Fund may sell or purchase futures  contracts.  When a futures contract
is sold by a Fund, the value of the contract will tend to rise when the value of
the underlying  securities or currencies  declines and to fall when the value of
such securities or currencies increases. Thus, each Fund sells futures contracts
in order  to  offset a  possible  decline  in the  value  of its  securities  or
currencies.  If a futures  contract  is  purchased  by a Fund,  the value of the
contract  will  tend to rise  when the  value of the  underlying  securities  or
currencies increases and to fall when the value of such securities or currencies
declines.  Each Fund intends to purchase futures contracts in order to establish
what is believed  by  Keystone  to be a  favorable  price and rate of return for
securities  or  favorable  exchange  rate for  currencies  the Fund  intends  to
purchase.

     Each  Fund  also  intends  to  purchase  put and call  options  on  futures
contracts for hedging  purposes.  A put option purchased by a Fund would give it
the right to assume a  position  as the  seller  of a futures  contract.  A call
option  purchased  by a Fund would give it the right to assume a position as the
purchaser of a futures contract. The purchase of an option on a futures contract
requires a Fund to pay a premium.  In exchange for the  premium,  a Fund becomes
entitled to exercise the benefits, if any, provided by the futures contract, but
is not required to take any action under the  contract.  If the option cannot be
exercised  profitably  before it  expires,  a Fund's loss will be limited to the
amount of the premium and any transaction costs.

     Each Fund may enter into closing purchase and sale transactions in order to
terminate a futures  contract  and may sell put and call options for the purpose
of closing out its options  positions.  A Fund's  ability to enter into  closing
transactions  depends on the development  and maintenance of a liquid  secondary
market.  There is no assurance that a liquid secondary market will exist for any
particular  contract or at any  particular  time.  As a result,  there can be no
assurance that a Fund will be able to enter into an offsetting  transaction with
respect to a particular  contract at a particular time. If a Fund is not able to
enter into an offsetting  transaction,  the Fund will continue to be required to
maintain  the margin  deposits  on the  contract  and to complete  the  contract
according to its terms,  in which case it would  continue to bear market risk on
the transaction.

     Although futures and options  transactions are intended to enable a Fund to
manage  market,  interest rate or exchange rate risk,  unanticipated  changes in
interest  rates,  exchange  rates  or  market  prices  could  result  in  poorer
performance than if it had not entered into these transactions. Even if Keystone
correctly  predicts  interest  or  exchange  rate  movements,  a hedge  could be
unsuccessful  if  changes  in the  value of a Fund's  futures  position  did not
correspond to changes in the value of its investments.  This lack of correlation
between a Fund's futures and securities or currencies positions may be caused by
differences  between the  futures and  securities  or  currencies  markets or by
differences  between the  securities or currencies  underlying a Fund's  futures
position and the securities or currencies held by or to be purchased for a Fund.
Keystone  will attempt to minimize  these risks  through  careful  selection and
monitoring of the Fund's futures and options positions.

     The Funds do not intend to use  futures  transactions  for  speculation  or
leverage.  Each Fund has the ability to write options on futures, but intends to
write such options only to close out options purchased by a Fund. The Funds will
not change these policies  without  supplementing  the information in the FUND's
prospectus and statement of additional information.

FOREIGN CURRENCY TRANSACTIONS
     As discussed above,  each Fund may invest in securities of foreign issuers.
When a Fund invests in foreign  securities  they usually will be  denominated in
foreign  currencies,  and  the  Fund  temporarily  may  hold  funds  in  foreign
currencies.  Thus,  the value of Fund  shares  will be  affected  by  changes in
exchange rates.

     As one way of managing  exchange  rate risk,  in addition to entering  into
currency  futures  contracts,  a Fund may enter into forward  currency  exchange
contracts  (agreements to purchase or sell  currencies at a specified  price and
date). The exchange rate for the transaction (the amount of currency a Fund will
deliver or receive when the contract is  completed)  is fixed when a Fund enters
into the contract.  A Fund usually will enter into these  contracts to stabilize
the U.S.  dollar  value of a security  it has  agreed to buy or sell.  Each Fund
intends to use these  contracts to hedge the U.S.  dollar value of a security it
already  owns,  particularly  if a Fund  expects a decrease  in the value of the
currency in which the  foreign  security  is  denominated.  Although a Fund will
attempt to benefit  from using  forward  contracts,  the  success of its hedging
strategy  will depend on  Keystone's  ability to predict  accurately  the future
exchange rates between foreign  currencies and the U.S.  dollar.  The value of a
Fund's investments denominated in foreign currencies will depend on the relative
strength of those  currencies  and the U.S.  dollar,  and a Fund may be affected
favorably or unfavorably  by changes in the exchange  rates or exchange  control
regulations  between  foreign  currencies  and the  dollar.  Changes  in foreign
currency  exchange  rates also may affect the value of  dividends  and  interest
earned,  gains and losses  realized on the sale of securities and net investment
income and gains, if any, to be distributed to shareholders by a Fund. Each Fund
may also purchase and sell options  related to foreign  currencies in connection
with hedging strategies.

INVERSE FLOATING RATE  SECURITIES.  If permitted by its investment  policies,  a
Fund may also  invest in  securities  with rates that move  inversely  to market
rates  ("inverse  floaters").  An inverse  floater  bears an interest  rate that
resets in the  opposite  direction  of the change in a specified  interest  rate
index.  As market  interest rates rise, the interest rate on the inverse floater
goes down,  and vice  versa.  Inverse  floaters  tend to exhibit  greater  price
volatility than  fixed-rate  bonds of similar  maturity and credit quality.  The
interest rates on inverse floaters may be significantly  reduced,  even to zero,
if interest rates rise. Moreover,  the secondary market for inverse floaters may
be limited in rising interest rate environments.

VARIABLE,  FLOATING AND  LEVERAGED  INVERSE  FLOATING RATE  INSTRUMENTS.  Fixed-
income  securities  may have  fixed,  variable or  floating  rates of  interest.
Variable and floating  rate  securities  pay interest at rates that are adjusted
periodically,  according  to a specified  formula.  A "variable"  interest  rate
adjusts at predetermined  intervals (e.g.,  daily,  weekly or monthly),  while a
"floating"  interest rate adjusts  whenever a specified  benchmark rate (such as
the bank prime lending rate) changes.

     The Fund may  invest in  fixed-income  securities  that pay  interest  at a
coupon rate equal to a base rate, plus additional  interest for a certain period
of time if short-term  interest rates rise above a predetermined level or "cap."
The amount of such an additional  interest payment typically is calculated under
a formula based on a short-term  interest rate index  multiplied by a designated
factor.

     An inverse floater may be considered to be leveraged to the extent that its
interest rate varies by a magnitude  that exceeds the magnitude of the change in
the index rate of interest.  The higher  degree of leverage  inherent in inverse
floaters is associated with greater volatility in market value.

STRUCTURED  SECURITIES.  Structured  securities generally represent interests in
entities  organized  and operated  solely for the purpose of  restructuring  the
investment  characteristics  of debt  obligations.  This  type of  restructuring
involves the deposit  with or purchase by an entity,  such as a  corporation  or
trust, of specified instruments (such as commercial bank loans) and the issuance
by that entity of one or more  classes of  structured  securities  backed by, or
representing  interests  in, the  underlying  instruments.  The cash flow on the
underlying  instruments  may be  apportioned  among the newly issued  structured
securities to create securities with different  investment  characteristics such
as varying maturities,  payment priorities and interest rate provisions, and the
extent of the payments made with respect to  structured  securities is dependent
on the extent of the cash flow on the underlying instruments. Because structured
securities typically involve no credit enhancement,  their credit risk generally
will be equivalent to that of the underlying instruments.  Structured securities
of a given class may be either  subordinated or  unsubordinated  to the right of
payment of another  class.  Subordinated  structured  securities  typically have
higher  yields  and  present  greater  risks  than   unsubordinated   structured
securities.
<PAGE>
                                                                       EXHIBIT A

                   KEYSTONE CALIFORNIA INSURED TAX FREE FUND

DESCRIPTION OF STATE AND LOCAL TAX TREATMENT
     In the opinion of Messrs.  Orrick,  Herrington & Sutcliffe,  California tax
counsel to the California Insured Fund, dividends paid by the California Insured
Fund that are  derived  from  interest on debt  obligations  that is exempt from
regular federal and California personal income tax will not be subject to either
federal or California personal income tax when received by the California Fund's
shareholders.  The pass through of exempt-interest  dividends is allowed only if
the California  Insured Fund meets its federal and California  requirements that
at least 50% of its total assets are invested in such exempt  obligations at the
end of each quarter of its fiscal year. Distributions to individual shareholders
derived from interest on state or municipal  obligations  issued by governmental
authorities in states other than California,  short term capital gains and other
taxable  income will be taxed as dividends for purposes of  California  personal
income taxation.  The Fund's long term capital gains distributed to shareholders
will be taxed as long  term  capital  gains to  individual  shareholders  of the
California  Insured Fund for purposes of California  personal  income  taxation.
Present  California law taxes both long term and short term capital gains at the
rates applicable to ordinary income.  Generally, for corporate taxpayers subject
to the California franchise tax, all distributions will be fully taxable.

SPECIAL FACTORS AFFECTING CALIFORNIA
     Through  popular  initiative and legislative  activity,  the ability of the
State and its local  governments  to raise money through  property  taxes and to
increase  spending  has been the  subject of  considerable  debate and change in
recent years. Various State Constitutional  amendments,  for example,  have been
adopted that have the effect of limiting  property  tax and spending  increases,
while  legislation  has sometimes  added to these  limitations  and has at other
times sought to reduce their  impact.  It can be expected  that similar types of
State legislation or Constitutional proposals will continue to be introduced. To
date, these developments do not appear to have severely decreased the ability of
the  State  and  local  governments  to pay  principal  and  interest  on  their
obligations.  Because of the uncertain impact of the aforementioned  efforts and
legislation, the possible inconsistencies in the terms of existing statutes, and
the  impossibility  of  predicting  the  level  of  future   appropriations  and
applicability  of  related  statutes  to  such  questions,  it is not  currently
possible  to predict the results of such  legislation  and  policies on the long
term ability of State and  municipal  issuers to pay  principal  and interest on
their obligations.

     California's  economy  is large and  diverse,  accounting  for about 13% of
national  personal  income.  Growth  was rapid in the 1980s and is  expected  to
continue,  although more moderately.  California's economy is the eighth largest
in the  world  and the  State  ranks  number  one  among  the  fifty  states  in
manufacturing, foreign trade, agriculture, construction and tourism. Through the
1980s,  the rate of state  population  growth  was more than  twice that for the
nation.

     Currently,  California is  experiencing  the effects of the recession  more
severely than the nation.  Personal  income growth has been below national rates
for the past two years and in first  quarter  1993.  Deep  defense  budget cuts,
overbuilt  commercial  real  estate,  consolidation  and  decline in the State's
financial  services  industry  and high  business and living  costs,  especially
compared to neighboring  Western  states,  are expected to produce slower growth
for several years.

     An  expanded  discussion  is  contained  in  the  Statement  of  Additional
Information.
<PAGE>

                        KEYSTONE MISSOURI TAX FREE FUND

DESCRIPTION OF STATE AND LOCAL TAX TREATMENT
     In the opinion of Messrs.  Bryan Cave, Missouri tax counsel to the Missouri
Tax Free Fund,  dividends paid by the Missouri Tax Free Fund that qualify as tax
exempt  dividends  under  Section  852(b)(5)  of the Code  will be  exempt  from
Missouri  income tax to the extent that such dividends are derived from interest
on  obligations  issued  by the  State  of  Missouri  or  any  of its  political
subdivisions,  or interest on  obligations of the U.S. and its  territories  and
possessions  to the extent exempt from  Missouri  income taxes under the laws of
the U.S.

     Dividends  paid by the Missouri Tax Free Fund,  if any, that do not qualify
as tax exempt dividends under Section 852(b)(5) of the Code, will be exempt from
Missouri  income tax only to the extent that such  dividends  are  derived  from
interest on certain  U.S.  obligations  that the State of Missouri is  expressly
prohibited  from taxing under the laws of the U.S. The portion of such dividends
that is not  subject  to  taxation  by the State of  Missouri  may be reduced by
interest, or other expenses, in excess of $500 paid or incurred by a shareholder
in any taxable year to purchase or carry shares of the Missouri Tax Free Fund or
other  investments  producing income that is includable in federal gross income,
but exempt from Missouri income tax.

     Dividends and distributions derived from the Missouri Tax Free Fund's other
investment  income and its capital  gains,  to the extent  includable in Federal
adjusted  gross income,  will be subject to Missouri  income tax.  Dividends and
distributions paid by the Missouri Tax Free Fund,  including  dividends that are
exempt from  Missouri  income tax as  described  above,  may be subject to state
taxes in states other than  Missouri or to local  taxes.  Shares in the Missouri
Fund are not subject to Missouri personal property taxes.

SPECIAL FACTORS AFFECTING MISSOURI
     Missouri's economic base is diversified and includes agriculture, commerce,
manufacturing,  services,  trade  and  mining.  The  State's  proximity  to  the
geographical and population  centers of the nation makes the State an attractive
location for business and  industry.  The State has  experienced  a  significant
increase in tourism.

     In recent years,  Missouri's  wealth  indicators have grown at a rate below
the 1980s. The State's per capita personal income has been growing at a somewhat
slower  rate than the nation as a whole.  Missouri's  unemployment  levels  have
equaled or exceeded the national average in recent years.  Defense contracts are
important to the State's economy and adverse changes in military  appropriations
could contribute to the continuation of this pattern.

     The State  operates from a General  Revenue Fund. The General Fund includes
funds received from tax revenues and federal grants.  The Missouri  Constitution
imposes  a limit on the  amount  of taxes  that may be  imposed  by the  General
Assembly  during any fiscal year. No assurances  can be given that the amount of
revenue  derived from taxes will remain at its current  level or that the amount
of federal grants previously provided to the State will continue.

     An  expanded  discussion  is  contained  in  the  Statement  of  Additional
Information.
<PAGE>

                                                                       EXHIBIT B

                             REDUCED SALES CHARGES

     Initial  sales  charges  may  be  reduced  or  eliminated  for  persons  or
organizations  purchasing  Class A shares of either Fund alone or in combination
with Class A shares of other Keystone America Funds.

     For purposes of  qualifying  for reduced  sales  charges on purchases  made
pursuant to Rights of  Accumulation or Letters of Intent,  the term  "Purchaser"
includes the following persons: an individual; an individual,  his or her spouse
and children under the age of 21; a trustee or other fiduciary of a single trust
estate  or  single  fiduciary   account   established  for  their  benefit;   an
organization  exempt from federal income tax under Section 501 (c)(3) or (13) of
the Internal Revenue Code; a pension,  profit-sharing  or other employee benefit
plan whether or not qualified under Section 401 of the Internal Revenue Code; or
other organized  groups of persons,  whether  incorporated or not,  provided the
organization  has been in existence for at least six months and has some purpose
other than the purchase of  redeemable  securities  of a  registered  investment
company at a discount.  In order to qualify for a lower sales charge, all orders
from an  organized  group  will  have to be placed  through a single  investment
dealer or other firm and identified as originating from a qualifying purchaser.

CONCURRENT PURCHASES
     For purposes of  qualifying  for a reduced  sales  charge,  a Purchaser may
combine  concurrent  direct  purchases  of Class A shares  of two or more of the
"Eligible Funds," as defined under "Rights of Accumulation."  For example,  if a
Purchaser concurrently invested $75,000 in one of the other "Eligible Funds" and
$75,000  in a Fund,  the sales  charge  would be that  applicable  to a $150,000
purchase,  i.e.,  3.75% of the offering  price, as indicated in the sales charge
schedule in the prospectus.

RIGHT OF ACCUMULATION
     In calculating the sales charge applicable to current purchases of a Fund's
Class A shares, a Purchaser is entitled to accumulate current purchases with the
current  value of  previously  purchased  Class A shares of the Fund and Class A
shares of certain other  eligible funds that are still held in (or exchanged for
shares of and are still held in) the same or another  eligible  fund  ("Eligible
Fund(s)")  irrespective  of class.  The Eligible Funds are the Keystone  America
Funds and Keystone Liquid Trust.

     For example,  if a Purchaser held shares valued at $99,999 and purchased an
additional $5,000, the sales charge for the $5,000 purchase would be at the next
lower sales  charge of 3.75% of the  offering  price as indicated in the Class A
sales charge  schedule.  KIRC must be notified at the time of purchase  that the
Purchaser is entitled to a reduced sales charge, which reduction will be granted
subject to confirmation of the Purchaser's  holdings.  The Right of Accumulation
may be modified or discontinued at any time.

LETTER OF INTENT
     A Purchaser may qualify for a reduced sales charge on a purchase of Class A
shares of a Fund alone or in combination with purchases of Class A shares of any
of the other  Eligible  Funds by completing  the Letter of Intent section of the
application. By so doing, the Purchaser agrees to invest within a thirteen-month
period a specified  amount that,  if invested at one time,  would  qualify for a
reduced sales charge.  Each  purchase  will be made at a public  offering  price
applicable  to a  single  transaction  of the  dollar  amount  specified  on the
application,  as  described  in this  prospectus.  The Letter of Intent does not
obligate the Purchaser to purchase, nor the Fund to sell, the amount indicated.

     After the Letter of Intent is received by KIRC,  each  investment made will
be entitled to the sales charge applicable to the level of investment  indicated
on the application.  The Letter of Intent may be back-dated up to ninety days so
that any  investments  made in any of the Eligible  Funds  during the  preceding
ninety-day  period,  valued  at the  Purchaser's  cost,  can be  applied  toward
fulfillment of the Letter of Intent.  However,  there will be no refund of sales
charges  already paid during the ninety-day  period.  No retroactive  adjustment
will be made if purchases  exceed the amount  specified in the Letter of Intent.
Income and capital gains distributions taken in additional shares will not apply
toward completion of the Letter of Intent.

     If total  purchases made pursuant to the Letter of Intent are less than the
amount specified, the Purchaser will be required to remit an amount equal to the
difference  between the sales  charge paid and the sales  charge  applicable  to
purchases  actually made. Out of the initial purchase (or subsequent  purchases,
if necessary) 5% of the dollar amount  specified on the application will be held
in escrow by KIRC in the form of shares  registered in the Purchaser's name. The
escrowed shares will not be available for redemption, transfer or encumbrance by
the Purchaser until the Letter of Intent is completed or the higher sales charge
paid. All income and capital gains distributions on escrowed shares will be paid
to the Purchaser or his order.

     When the minimum investment  specified in the Letter of Intent is completed
(either prior to or by the end of the thirteen-month period), the Purchaser will
be notified and the escrowed shares will be released. If the intended investment
is not  completed,  the  Purchaser  will be  asked  to  remit  to the  Principal
Underwriter any difference  between the sales charge on the amount specified and
on the amount actually attained.  If the Purchaser does not within 20 days after
written  request by the Principal  Underwriter or his dealer pay such difference
in sales charge,  KIRC will redeem an appropriate  number of the escrowed shares
in order to realize such difference.  Shares remaining after any such redemption
will be released  by KIRC.  Any  redemptions  made by the  Purchaser  during the
thirteen-month  period will be  subtracted  from the amount of the purchases for
purposes of determining whether the Letter of Intent has been completed.  In the
event of a total  redemption of the account prior to completion of the Letter of
Intent,  the  additional  sales charge due will be deducted from the proceeds of
the redemption and the balance will be forwarded to the Purchaser.

     By signing the  application,  the  Purchaser  irrevocably  constitutes  and
appoints  KIRC his  attorney to  surrender  for  redemption  any or all escrowed
shares with full power of substitution.

     The Purchaser or his dealer must inform the Principal  Underwriter  or KIRC
that a Letter of Intent is in effect each time a purchase is made.

<PAGE>
- ------------------------------------
           KEYSTONE AMERICA
             FUND FAMILY

                  *

Capital Preservation and Income Fund
     Government Securities Fund
    Intermediate Term Bond Fund
       Strategic Income Fund
         World Bond Fund
       Tax Free Income Fund
  California Insured Tax Free Fund
      Florida Tax Free Fund
   Massachusetts Tax Free Fund
     Missouri Tax Free Fund
 New York Insured Tax Free Fund
   Pennsylvania Tax Free Fund
     Texas Tax Free Fund
    Fund for Total Return
  Global Opportunities Fund
Hartwell Emerging Growth Fund, Inc.
      Hartwell Growth Fund
           Omega Fund
      Fund of the Americas
    Strategic Development Fund
- ------------------------------------

[Logo]  KEYSTONE
        INVESTMENTS

        Keystone Investment Distributors Company
        200 Berkeley Street
        Boston, Massachusetts 02116-5034

CATF-P 6/95                       [Recycle Logo]
3.15M

                                    --------------------------------------------
                                                     KEYSTONE

                                                 PHOTO:
                                                 GOLDEN
                                                 GATE
                                                 BRIDGE



                                              CALIFORNIA INSURED
                                                  TAX FREE FUND
                                    --------------------------------------------

                                                      [Logo]

                                                  PROSPECTUS AND
                                                   APPLICATION
<PAGE>
- ------------------------------------
           KEYSTONE AMERICA
             FUND FAMILY

                  *

Capital Preservation and Income Fund
     Government Securities Fund
    Intermediate Term Bond Fund
       Strategic Income Fund
         World Bond Fund
       Tax Free Income Fund
  California Insured Tax Free Fund
      Florida Tax Free Fund
   Massachusetts Tax Free Fund
     Missouri Tax Free Fund
 New York Insured Tax Free Fund
   Pennsylvania Tax Free Fund
     Texas Tax Free Fund
    Fund for Total Return
  Global Opportunities Fund
Hartwell Emerging Growth Fund, Inc.
      Hartwell Growth Fund
           Omega Fund
      Fund of the Americas
    Strategic Development Fund
- ------------------------------------

[Logo]  KEYSTONE
        INVESTMENTS

        Keystone Investment Distributors Company
        200 Berkeley Street
        Boston, Massachusetts 02116-5034

MOTF-P 6/95                       [Recycle Logo]
4.35M

                                    --------------------------------------------
                                                     KEYSTONE

                                                 PHOTO:
                                                 GATEWAY
                                                 ARCH,
                                                 ST. LOUIS



                                                    MISSOURI
                                                  TAX FREE FUND
                                    --------------------------------------------

                                                      [Logo]

                                                  PROSPECTUS AND
                                                   APPLICATION

<PAGE>

                    KEYSTONE STATE TAX FREE FUND - SERIES II

                      STATEMENT OF ADDITIONAL INFORMATION

                                 MARCH 31, 1995
                          AS SUPPLEMENTED JUNE 1, 1995



     This statement of additional  information is not a prospectus,  but relates
to, and should be read in conjunction with, the prospectus of Keystone State Tax
Free Fund - Series II (formerly  named  Keystone  America  State Tax Free Fund -
Series II) (the "FUND")  dated March 31, 1995, as  supplemented  June 1, 1995. A
copy of the  prospectus  may be obtained from Keystone  Investment  Distributors
Company   (formerly   named  Keystone   Distributors,   Inc.)  (the   "Principal
Underwriter"),  the FUND's principal  underwriter,  200 Berkeley Street, Boston,
Massachusetts 02116-5034.




- --------------------------------------------------------------------------------
                               TABLE OF CONTENTS
- --------------------------------------------------------------------------------
                                                               Page

         The FUND                                               2
         Investment Policies                                    2
         Investment Restrictions                                6
         Valuation and Redemption of Securities                 9
         Shareholder Services                                  10
         Sales Charges                                         11
         Distribution Plans                                    14
         Investment Adviser                                    18
         Trustees and Officers                                 20
         Principal Underwriter                                 24
         Brokerage                                             25
         Declaration of Trust                                  27
         Standardized Total Return and Yield Quotations        29
         Additional Information                                30
         Appendix A                                           A-1
         Appendix B                                           B-1
         Financial Statements                                 F-1
         Independent Auditors' Report                         F-21




<PAGE>

- --------------------------------------------------------------------------------
                                    THE FUND
- --------------------------------------------------------------------------------

     The  FUND is a  non-diversified,  open-end  management  investment  company
commonly known as a mutual fund. The FUND was formed as a Massachusetts business
trust on  December  15,  1993.  The FUND is one of the thirty  funds  managed or
advised by Keystone  Investment  Management  Company  (formerly  named  Keystone
Custodian Funds, Inc.)  ("Keystone"),  the FUND's investment  adviser.  The FUND
currently consists of the following two separate series evidencing  interests in
different  portfolios of securities:  Keystone  California Insured Tax Free Fund
("California  Insured Fund") and Keystone  Missouri Tax Free Fund ("Missouri Tax
Free Fund") (each a "Fund" and collectively, the "Funds").

     The essential  information about the FUND and its Funds is contained in its
prospectus.   This  statement  of  additional  information  provides  additional
information  about  the  FUND and its  Funds  that  may be of  interest  to some
investors.

     For special  factors  affecting each Fund, see Appendix A to this statement
of additional information.


- --------------------------------------------------------------------------------
                              INVESTMENT POLICIES
- --------------------------------------------------------------------------------

     Each Fund invests  primarily in municipal  obligations that are exempt from
federal income tax and also exempt from certain specified taxes in the state for
which it is named. In addition,  the Funds invest in certain other securities as
described below.

MUNICIPAL OBLIGATIONS

     Municipal  obligations include debt obligations issued by or on behalf of a
state, a territory or a possession of the United States  ("U.S."),  the District
of Columbia or any political subdivision, agency or instrumentality thereof (for
example,  counties, cities, towns, villages,  districts,  authorities) to obtain
funds for various public purposes, including the construction of a wide range of
public facilities such as airports,  bridges, highways, housing, hospitals, mass
transportation,  schools,  streets  and  water  and sewer  works.  Other  public
purposes for which municipal  obligations may be issued include the refunding of
outstanding  obligations,  obtaining  funds for general  operating  expenses and
obtaining funds to lend to public or private  institutions  for the construction
of  facilities,  such  as  educational,  hospital  and  housing  facilities.  In
addition,  certain  types of  industrial  development  bonds have been or may be
issued   by  or  on   behalf   of  public   authorities   to   finance   certain
privately-operated  facilities,  and certain local  facilities for water supply,
gas,  electricity  or sewage  or solid  waste  disposal.  Such  obligations  are
included  within the term  municipal  obligations  if the interest  paid thereon
qualifies as fully exempt from federal  income tax. The income of certain  types
of  industrial  development  bonds  used to finance  certain  privately-operated
facilities (qualified private activity bonds) issued after August 7, 1986, while
exempt  from  federal  income  tax,  is  includable  for  the  purposes  of  the
calculation  of  the   alternative   minimum  tax.  Other  types  of  industrial
development  bonds,  the  proceeds  from  which  are used for the  construction,
equipment,  repair or improvement of privately operated industrial or commercial
facilities,  may constitute municipal obligations,  although the current federal
tax laws place substantial limitations on the size of such issues.

     The two principal  classifications  of municipal  obligations  are "general
obligation" and limited obligation or "revenue" bonds.  General obligation bonds
are obligations  involving the credit of an issuer  possessing  taxing power and
are payable from the  issuer's  general  unrestricted  revenues and not from any
particular  fund or revenue  source.  Their  payment  may be  dependent  upon an
appropriation   by  the  issuer's   legislative  body  and  may  be  subject  to
quantitative  limitations on the issuer's taxing power. The  characteristics and
methods of  enforcement  of general  obligation  bonds vary according to the law
applicable to the  particular  issuer.  Limited  obligation or revenue bonds are
payable  only from the revenues  derived from a particular  facility or class of
facilities  or, in some cases,  from the  proceeds of a special  excise or other
specific  revenue  source,  such  as  the  user  of  the  facility.   Industrial
development  bonds that are municipal  obligations  are, in most cases,  revenue
bonds and  generally  are not  payable  from the  unrestricted  revenues  of the
issuer.  The credit quality of industrial  development  revenue bonds is usually
directly  related to the credit standing of the owner or user of the facilities.
There are, of course, variations in the security of municipal obligations,  both
within a particular  classification  and between  classifications,  depending on
numerous factors.

     The yields on municipal  obligations are dependent on a variety of factors,
including  general  money  market  conditions,  the  financial  condition of the
issuer,  general conditions of the municipal  obligations  market, the size of a
particular offering, and the maturity of the obligation and rating of the issue.
The ratings of Moody's Investors Service,  Inc.  ("Moody's"),  Standard & Poor's
Corporation  ("S&P") and Fitch  Investor  Services,  Inc. -  Municipal  Division
("Fitch"),  as described herein and in the prospectus,  represent their opinions
as to the quality of the municipal  obligations  that they undertake to rate. It
should be  emphasized,  however,  that  ratings  are  general  and not  absolute
standards  of  quality.  Consequently,   municipal  obligations  with  the  same
maturity,  interest rate and rating may have  different  yields while  municipal
obligations  of the same maturity and interest rate with  different  ratings may
have the same yield.  It should also be noted that the  standards of  disclosure
applicable to and the amount of information  relating to the financial condition
of issuers of  municipal  obligations  are not  generally  as extensive as those
generally relating to corporations.

     Subsequent to its purchase by a Fund, an issue of municipal  obligations or
other  investment  may cease to be rated or its rating may be reduced  below the
minimum  rating  required for purchase by the Fund.  Neither event  requires the
elimination  of such  obligation  from the Fund's  portfolio,  but Keystone will
consider such an event in its  determination of whether the Fund should continue
to hold such obligation in its portfolio.

     The ability of each Fund to achieve its investment  objectives is dependent
upon the  continuing  ability of issuers of municipal  obligations to meet their
obligations  to pay interest and principal  when due.  Obligations of issuers of
municipal  obligations  are subject to the provisions of bankruptcy,  insolvency
and other laws  affecting  the rights and  remedies  of  creditors,  such as the
federal  Bankruptcy  Act, and laws,  if any,  that may be enacted by Congress or
state legislatures  extending the time for payment of principal or interest,  or
both, or imposing other constraints upon enforcement of such obligations.  There
is also the possibility that as a result of litigation or other conditions,  the
power or ability of any one or more issuers to pay,  when due,  principal of and
interest on its or their municipal  obligations may be materially  affected.  In
addition,  the  market  for  municipal  obligations  is  often  thin  and can be
temporarily affected by large purchases and sales, including those by a Fund.

     From time to time,  proposals have been introduced  before Congress for the
purpose of  restricting  or  eliminating  the federal  income tax  exemption for
interest on municipal obligations,  and similar proposals may well be introduced
in the future.  If such a proposal were enacted,  the  availability of municipal
obligations  for investment by the Funds and the value of the Funds'  portfolios
could be  materially  affected,  in which  event the FUND would  reevaluate  the
investment  objectives  and  policies of its Funds and  consider  changes in the
structure of the Funds or dissolution.

     The Tax Reform Act of 1986 made  significant  changes  in the  federal  tax
status of certain  obligations that were previously fully federally  tax-exempt.
As a result,  three categories of such  obligations  issued after August 7, 1986
now exist:  (1) "public  purpose"  bonds,  the income from which  remains  fully
exempt from federal  income tax; (2)  qualified  "private  activity"  industrial
development  bonds, the income from which,  while exempt from federal income tax
under Section 103 of the Internal  Revenue Code of 1986, as amended (the "Code")
is includable in the calculation of the federal alternative minimum tax; and (3)
"private  activity" (private purpose) bonds, the income from which is not exempt
from federal  income tax. A Fund will not invest in private  purpose  bonds and,
except as  described  under  "Other  Eligible  Investments,"  will not invest in
qualified "private activity"  industrial  development bonds whose  distributions
are subject to the alternative minimum tax.

OTHER ELIGIBLE INVESTMENTS

     A Fund may invest up to 20% of its assets under ordinary  circumstances and
up to 100% of its assets for temporary defensive purposes in the following types
of instruments: (1) commercial paper, including master demand notes, that at the
date of investment is rated A-1 (the highest grade by S&P), Prime-1 (the highest
grade by Moody's) or, if not rated by such services, is issued by a company that
at the date of investment has an  outstanding  issue rated A or better by S&P or
Moody's;  (2)  obligations,  including  certificates  of  deposit  and  bankers'
acceptances,  of banks, or savings and loan  associations  that have at least $1
billion  in assets as of the date of their  most  recently  published  financial
statements  that are  members  of the  Federal  Deposit  Insurance  Corporation,
including U.S. branches of foreign banks and foreign branches of U.S. banks; (3)
corporate  obligations  (maturing  in 13  months  or  less)  that at the date of
investment are rated A or better by S&P or Moody's;  (4)  obligations  issued or
guaranteed  by the U.S.  government or by any agency or  instrumentality  of the
U.S.; (5) qualified "private activity" industrial  development bonds, the income
from which,  while exempt from federal income tax under Section 103 of the Code,
is includable in the calculation of the federal alternative minimum tax; and (6)
municipal  obligations,  the income of which is exempt from federal  income tax.
Each Fund will assume a temporary defensive position when, for example, Keystone
determines  that  market   conditions  so  warrant.   If  a  Fund  is  investing
defensively, it is not pursuing its objectives.

FUNDAMENTAL NATURE OF INVESTMENT OBJECTIVES

     The  investment  objectives  of each  Fund are  fundamental  and may not be
changed  without  approval  of the  holders  of a  majority  (as  defined in the
Investment  Company Act of 1940 ("1940 Act")) of such Fund's  outstanding voting
shares (which means the lesser of (1) 67% of the shares represented at a meeting
at which more than 50% of the  outstanding  shares are  represented  or (2) more
than 50% of the outstanding shares).


<PAGE>


- --------------------------------------------------------------------------------
                            INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

     The investment  restrictions  set forth below are fundamental for each Fund
and may not be changed  without  the vote of a 1940 Act  majority of such Fund's
outstanding voting shares. Unless otherwise stated, all references to the assets
of a Fund  are in  terms  of  current  market  value.  Each  Fund may not do the
following:

     (1)  purchase  any  security  of any issuer  (other than issues of the U.S.
government,  its agencies or  instrumentalities) if as a result more than 25% of
its total assets would be invested in a single industry, including in industrial
development  bonds  from the  same  facility  or  similar  types of  facilities;
governmental  issuers  of  municipal  bonds are not  regarded  as  members of an
industry  and a Fund may  invest  more  than  25% of its  assets  in  industrial
development bonds;

     (2) invest more than 15% of its assets in securities  which may not be sold
or  disposed  of in the  ordinary  course  of  business  within  seven  days  at
approximately the value at which a Fund has valued such securities on its books;

     (3) invest more than 5% of its total  assets in  securities  of any company
having a record,  together  with its  predecessors,  of less than three years of
continuous operation;

     (4)  pledge  more than 15% of its net  assets to secure  indebtedness;  the
purchase  or  sale  of  securities  on a  "when  issued"  basis,  or  collateral
arrangement with respect to the writing of options on securities, are not deemed
to be a pledge of assets;

     (5) issue senior securities;  the purchase or sale of securities on a "when
issued" basis or collateral  arrangement  with respect to the writing of options
on securities, are not deemed to be the issuance of a senior security;

     (6) borrow money or enter into reverse repurchase agreements, except that a
Fund may enter into reverse repurchase agreements or borrow money from banks for
temporary  or  emergency  purposes in  aggregate  amounts up to one-third of the
value of the Fund's net assets;  provided that while  borrowings from banks (not
including reverse repurchase agreements) exceed 5% of the Fund's net assets, any
such borrowings will be repaid before additional investments are made;

     (7) purchase securities on margin except that it may obtain such short-term
credit  as may be  necessary  for  the  clearance  of  purchases  and  sales  of
securities;

     (8) make short sales of securities or maintain a short position,  unless at
all  times  when a short  position  is open it  owns  an  equal  amount  of such
securities or of securities which, without payment of any further consideration,
are convertible  into or  exchangeable  for securities of the same issue as, and
equal in amount to, the securities sold short;

     (9) make  loans,  except that a Fund may  purchase or hold debt  securities
consistent with its investment  objectives,  lend portfolio securities valued at
not  more  than  15% of its  total  assets  to  broker-dealers  and  enter  into
repurchase agreements;

     (10) purchase securities of other investment companies, except as part of a
merger, consolidation, purchase of assets or similar transaction;

     (11) purchase or sell  commodities  or commodity  contracts or real estate,
except  that it may  purchase  and sell  securities  secured by real  estate and
securities of companies which invest in real estate,  and may engage in currency
or other financial futures contracts and related options transactions;

     (12)  underwrite  securities  of other  issuers,  except  that the Fund may
purchase  securities from the issuer or others and dispose of such securities in
a manner consistent with its investment objective; or

     (13)  participate on a joint, or a joint and several,  basis in any trading
account in  securities;  the  "bunching"  of orders for the sale or  purchase of
portfolio  securities  with other funds advised by Keystone or its affiliates to
reduce brokerage  commissions or otherwise to achieve best overall  execution is
not considered participation in a trading account in securities.

     The Funds  are  non-diversified  under  the  federal  securities  laws.  As
non-diversified  Funds,  there  is no  restriction  under  the  1940  Act on the
percentage  of assets that may be invested at any time in the  securities of any
one issuer. The Funds intend to comply, however, with the Code's diversification
requirements  and  other  requirements   applicable  to  "regulated   investment
companies" so that they will not be subject to U.S. federal income tax on income
and capital gain distributions to shareholders.  For this reason,  each Fund has
adopted the additional investment  restriction set forth below, which may not be
changed  without the  approval  of  shareholders.  Specifically,  a Fund may not
purchase  a  security  if more  than 25% of the  Fund's  total  assets  would be
invested in the  securities of a single issuer (other than the U.S.  government,
its agencies and  instrumentalities) or, with respect to 50% of the Fund's total
assets,  if more than 5% of such assets would be invested in the securities of a
single   issuer   (other   than   the  U.S.   government,   its   agencies   and
instrumentalities).

     As a matter of practice,  each Fund treats reverse repurchase agreements as
borrowings  for purposes of  compliance  with the  limitations  of the 1940 Act.
Reverse  repurchase  agreements will be taken into account along with borrowings
from  banks for  purposes  of the 5% limit  set  forth in the sixth  fundamental
investment restriction above.

     To the  extent  the  Funds  are not  fully  diversified,  they  may be more
susceptible to adverse economic,  political or regulatory developments affecting
a  single  issuer  than  would  be the  case  if the  Funds  were  more  broadly
diversified.

     Additional  restrictions adopted for each Fund, which may be changed by the
Board of Trustees,  provide that a Fund may not purchase or retain securities of
an issuer if, to the knowledge of the FUND,  officers,  Trustees or Directors of
the  FUND or  Keystone  each  owning  beneficially  more  than  1/2 of 1% of the
securities of such issuer own in the aggregate more than 5% of the securities of
such  issuer,  or such persons or  management  personnel of the FUND or Keystone
have a  substantial  beneficial  interest  in the  securities  of  such  issuer.
Portfolio  securities  of a Fund may not be purchased  from or sold or loaned to
Keystone  or any  affiliate  thereof  or any of  their  Directors,  officers  or
employees.

     None of the Funds  presently  intends to invest  more than 25% of its total
assets in municipal obligations the payment of which depends on revenues derived
from a single facility or similar types of facilities.  Since certain  municipal
obligations may be related in such a way that an economic, business or political
development  or change  affecting one such security  could  likewise  affect the
other securities,  a change in this policy could result in increased  investment
risk, but no change is presently contemplated.

     For the purposes of the first,  third, and twelfth  fundamental  investment
restrictions set forth above, each Fund will treat (1) each state, territory and
possession of the U.S., the District of Columbia and, if its assets and revenues
are separate  from those of the entity or entities  creating it, each  political
subdivision, agency and instrumentality of any one (or more, as in the case of a
multistate  authority or agency) of the foregoing as an issuer of all securities
that are backed  primarily  by its assets or  revenues;  (2) each  company as an
issuer of all  securities  that are backed  primarily by its assets or revenues;
and (3) each of the foregoing  entities as an issuer of all  securities  that it
guarantees;  provided,  however,  that for the purpose of the first  fundamental
investment  restriction  no entity shall be deemed to be an issuer of a security
that it  guarantees  so long as no more than 10% of a Fund's total assets (taken
at current  value)  are  invested  in  securities  guaranteed  by the entity and
securities of which it is otherwise deemed to be an issuer.

     The FUND has undertaken to a state  securities  authority  that, so long as
the state  authority  requires and shares of the FUND are registered for sale in
that state, the FUND will (1) not invest in real estate limited partnerships and
(2) not invest in oil, gas or other mineral leases.

     Further,  the FUND has undertaken to a state securities  authority that, so
long as the state  authority  requires and shares of the FUND are registered for
sale in that state, all loans of portfolio securities will be made in accordance
with fair,  just and equitable  practice and the collateral  values of portfolio
securities loaned will be maintained at no less than 100% by "marking to market"
daily.

     In order to permit the sale of a Fund's shares in certain states,  the FUND
may make commitments more restrictive than the investment restrictions described
above.  Should the FUND determine  that any such  commitment is no longer in the
best  interests  of  the  affected  Fund,  it  will  revoke  the  commitment  by
terminating sales of its shares in the state involved.

     If a percentage  limit is satisfied at the time of investment or borrowing,
a later  increase  or decrease  resulting  from a change in asset value is not a
violation of the limit.


- --------------------------------------------------------------------------------
                     VALUATION AND REDEMPTION OF SECURITIES
- --------------------------------------------------------------------------------

     Current  values for each Fund's  portfolio  securities may be determined in
the following manner:

     1. securities for which market  quotations are readily available are valued
at the mean of the bid and asked prices at the time of valuation;

     2. (a) instruments  having  maturities of sixty days or less when purchased
are  valued  at  amortized  cost   (original   purchase  cost  as  adjusted  for
amortization  of premium or accretion of  discount),  which,  when combined with
accrued interest, approximates market;

        (b) investments maturing in more than sixty days when purchased that are
held on the sixtieth day prior to maturity are valued at amortized  cost (market
value on the sixtieth day adjusted for  amortization  of premium or accretion of
discount), which, when combined with accrued interest,  approximates market; and
which, in either case,  reflects fair value as determined by the FUND's Board of
Trustees;

     3.  short-term  instruments  having  maturities of more than sixty days for
which  market  quotations  are readily  available  are valued at current  market
value; and

     4. the following securities are valued at prices deemed in good faith to be
fair under  procedures  established  by the Board of Trustees:  (a)  securities,
including  restricted  securities,  for which market  quotations are not readily
available; and (b) other assets.

     The FUND believes that reliable market quotations are generally not readily
available for purposes of valuing municipal obligations.  As a result, depending
on the particular municipal  obligations owned by a Fund, it is likely that most
of the  valuations  for such  obligations  will be based  upon  their fair value
determined  under  procedures  approved by the Board of  Trustees.  The Board of
Trustees has authorized the use of a pricing service to determine the fair value
of  each  Fund's  municipal  obligations  and  certain  other  securities.   Non
tax-exempt  securities  for which market  quotations  are readily  available are
valued on a consistent  basis at that price  quoted that,  in the opinion of the
Board of Trustees or the person  designated by the Board of Trustees to make the
determination,  most  nearly  represents  the  market  value  of the  particular
security.  Any securities for which market  quotations are not readily available
or other assets are valued on a consistent  basis at fair value as determined in
good faith using methods prescribed by the FUND's Board of Trustees.

     The FUND has  obligated  itself  under the 1940 Act to redeem  for cash all
shares  presented for redemption by any one  shareholder in any 90 day period up
to the lesser of $250,000 or 1% of a Fund's assets.


- --------------------------------------------------------------------------------
                              SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------

REINVESTMENT PRIVILEGE

     A shareholder  may elect to make a  reinvestment  purchase with any part of
the proceeds of a total or partial  redemption of Fund shares.  Upon making such
an election,  the FUND will waive the applicable sales charge.  Such an election
must be made within 30 days of the date of such redemption and the purchase must
be of shares of the same Fund.  The number of shares  credited upon  reinvesting
will be  based  on the net  asset  value  of the  Fund's  shares  next  computed
following receipt of the proceeds and request for reinvestment. If a shareholder
exercises this reinvestment  privilege,  any tax loss realized upon the original
sale of Fund shares will not be recognized for federal income tax purposes.  Any
capital  gains,  however,  would be recognized  for federal income tax purposes.
This  reinvestment  privilege  may  be  used  only  once  with  respect  to  any
shareholder.  For tax reporting  purposes,  the FUND will treat a redemption and
subsequent reinvestment purchase as separate transactions.

OTHER SERVICES

     Please  refer  to  the  prospectus  for  more  information  on  shareholder
services.


- --------------------------------------------------------------------------------
                                 SALES CHARGES
- --------------------------------------------------------------------------------

GENERAL

     Generally,  each Fund offers  three  classes of shares.  Class A shares are
offered  with a maximum  sales  charge of 4.75%  payable at the time of purchase
("Front End Load Option"). Class B shares purchased on or after June 1, 1995 are
subject to a contingent deferred sales charge payable upon redemption during the
72 month period following the month of purchase.  Class B shares purchased prior
to June 1, 1995 are subject to a contingent  deferred  sales charge payable upon
redemption  during the calendar  year of purchase and the three  calendar  years
following the calendar year of purchase ("Back End Load Option"). Class B shares
purchased  on or after  June 1,  1995 that have  been  outstanding  eight  years
following  the month of purchase  will  automatically  convert to Class A shares
without  imposition of a front-end  sales charge or exchange fee. Class B shares
purchased prior to June 1, 1995 that have been outstanding during seven calendar
years will  similarly  convert to Class A shares.  (Conversion of Class B shares
represented  by  stock  certificates  will  require  the  return  of  the  stock
certificates to Keystone Investor  Resource Center,  Inc.  ("KIRC"),  the FUND's
transfer and dividend  disbursing  agent.)  Class C shares are sold subject to a
contingent  deferred sales charge payable upon redemption  within one year after
purchase  ("Level  Load  Option").  Class C shares are  available  only  through
dealers who have entered into special distribution agreements with the Principal
Underwriter.  The  FUND's  prospectus  contains  a  general  description  of how
investors  may buy  shares  of the FUND as well as a table of  applicable  sales
charges for Class A shares, a discussion of reduced sales charges  applicable to
subsequent purchases,  and a description of applicable contingent deferred sales
charges.

CONTINGENT DEFERRED SALES CHARGES

     In order to reimburse a Fund for certain  expenses  relating to the sale of
its shares (see  "Distribution  Plan"),  a contingent  deferred  sales charge is
imposed at the time of redemption of certain Fund shares as follows:

CLASS A SHARES

     With certain exceptions, purchases of Class A shares made on or after April
10,  1995 (1) in an amount  equal to or  exceeding  $1,000,000  and/or  (2) by a
corporate  qualified  retirement plan or a non-qualified  deferred  compensation
plan  sponsored  by a  corporation  having  100 or more  eligible  employees  (a
"Qualifying  Plan"),  in either case without a front-end  sales charge,  will be
subject  to a  contingent  deferred  sales  charge of 0.50%  during the 24 month
period following the date of purchase.  Certain Class A shares purchased without
a front-end  sales charge prior to April 10, 1995 may be subject to a contingent
deferred  sales  charge of 0.25%  upon  redemption  during the  one-year  period
commencing on the date such shares were  originally  purchased.  The  contingent
deferred  sales  charge  will be  retained  by the  Principal  Underwriter.  See
"Calculation of Contingent Deferred Sales Charge" below.

CLASS B SHARES

     With  respect to Class B shares  purchased  on or after June 1, 1995,  each
Fund,  with  certain  exceptions,  will  impose a  deferred  sales  charge  as a
percentage  of the lesser of net asset  value or net cost of such Class B shares
redeemed during succeeding  twelve-month periods following the month of purchase
as follows:  5% during the first period;  4% during the second period; 3% during
the third period; 3% during the fourth period;  2% during the fifth period,  and
1% during  the sixth  period.  No  deferred  sales  charge is imposed on amounts
redeemed thereafter.

     With respect to Class B shares  purchased prior to June 1, 1995, each Fund,
with certain exceptions,  will impose a deferred sales charge of 3.00% on shares
redeemed during the calendar year of purchase and during the first calendar year
after  purchase;  2.00% on shares redeemed during the second calendar year after
purchase;  and 1.00% on shares redeemed during the third calendar year after the
year of  purchase.  No  deferred  sales  charge is imposed  on amounts  redeemed
thereafter.  When  imposed,  the  deferred  sales  charge is  deducted  from the
redemption  proceeds  otherwise  payable to you.  The  deferred  sales charge is
retained  by the  Principal  Underwriter.  Amounts  received  by  the  Principal
Underwriter  under the Class B Distribution  Plans are reduced by deferred sales
charges  retained by the Principal  Underwriter.  See "Calculation of Contingent
Deferred Sales Charge" below.

CLASS C SHARES

     With certain  exceptions,  each Fund will impose a deferred sales charge of
1% on shares  redeemed  within one year after the date of purchase.  No deferred
sales  charge is imposed on  amounts  redeemed  thereafter.  When  imposed,  the
deferred sales charge is deducted from the redemption proceeds otherwise payable
to you. The deferred sales charge is retained by the Principal Underwriter.  See
"Calculation of Contingent Deferred Sales Charge" below.

CALCULATION OF CONTINGENT DEFERRED SALES CHARGE

     Any  contingent  deferred sales charge imposed upon the redemption of Class
A, Class B or Class C shares is a percentage  of the lesser of (1) the net asset
value of the shares redeemed or (2) the net cost of such shares.

     No  contingent  deferred  sales charge is imposed  when you redeem  amounts
derived from (1)  increases  in the value of your account  above the net cost of
such shares due to  increases  in the net asset  value per share of a Fund;  (2)
certain  shares  with  respect  to  which a Fund  did not  pay a  commission  on
issuance,  including shares acquired through reinvestment of dividend income and
capital gains  distributions;  (3) certain Class A shares held for more than one
or two years, as the case may be, from the date of purchase;  (4) Class B shares
held during  more than four  consecutive  calendar  years or more than 72 months
after the month of purchase,  as the case may be; or (5) Class C shares held for
more than one year from the date of purchase.

     Upon request for redemption,  shares not subject to the contingent deferred
sales charge will be redeemed first. Thereafter, shares held the longest will be
the first to be redeemed.  There is no contingent deferred sales charge when the
shares of a class are  exchanged  for the  shares of the same  class of  another
Keystone  America Fund.  Moreover,  when shares of one such class of a fund have
been  exchanged for shares of another such class of a fund, the calendar year of
the  exchange  is assumed  to be the year  shares  tendered  for  exchange  were
originally purchased.

WAIVER OF SALES CHARGES

     Shares  also  may be sold,  to the  extent  permitted  by  applicable  law,
regulations,  interpretations  or  exemptions,  at net asset  value  without the
imposition  of an  initial  sales  charge to (1)  certain  officers,  Directors,
Trustees,  full-time  employees and sales  representatives of the FUND, Keystone
Management, Inc. ("Keystone Management"),  Keystone, Keystone Investments,  Inc.
(formerly named Keystone Group, Inc.) ("Keystone  Investments"),  Harbor Capital
Management  Company,  Inc.,  any  one of  their  subsidiaries  or the  Principal
Underwriter, who have been such for not less than ninety days; (2) a pension and
profit-sharing  plan  established  by such  companies,  their  subsidiaries  and
affiliates, for the benefit of their officers,  Directors,  Trustees,  full-time
employees and sales  representatives;  or (3) a registered  representative  of a
firm with a dealer agreement with the Principal  Underwriter,  provided all such
sales  are made  upon  the  written  assurance  that  the  purchase  is made for
investment  purposes and that the  securities  will not be resold except through
redemption by the FUND.

     No initial  sales  charge is charged on a purchase of shares of a Fund by a
bank or trust  company  in a single  account  in the name of such  bank or trust
company as trustee if the  initial  investment  in shares of one of the Funds or
any fund in the Keystone Investments Family of Funds is at least $500,000.

     With respect to Class A shares  purchased by a Qualifying Plan at net asset
value or Class C shares purchased by a Qualifying  Plan, no Contingent  Deferred
Sales  Charge  will  be  imposed  on any  redemptions  made  specifically  by an
individual  participant in the Qualifying  Plan. This waiver is not available in
the  event a  Qualifying  Plan,  as a whole,  redeems  substantially  all of its
assets.

     In addition, no contingent deferred sales charge is imposed on a redemption
of shares of a Fund in the event of (1) death or disability of the  shareholder;
(2) a lump-sum  distribution  from a benefit plan  qualified  under the Employee
Retirement Income Security Act of 1974 ("ERISA"); (3) automatic withdrawals from
ERISA plans if the  shareholder  is at least 59 1/2 years old;  (4)  involuntary
redemptions  of an  account  having an  aggregate  net asset  value of less than
$1,000; (5) automatic  withdrawals under an automatic withdrawal plan of up to 1
1/2% per month of the  shareholder's  initial account  balance;  (6) withdrawals
consisting  of loan  proceeds to a retirement  plan  participant;  (7) financial
hardship  withdrawals made by a retirement plan participant;  or (8) withdrawals
consisting of returns of excess contributions or excess deferral amounts made to
a retirement plan participant.


- --------------------------------------------------------------------------------
                               DISTRIBUTION PLANS
- --------------------------------------------------------------------------------

     Rule 12b-1 under the 1940 Act  permits  investment  companies,  such as the
FUND, to use their assets to bear expenses of distributing  their shares if they
comply  with  various  conditions,  including  adoption of a  distribution  plan
containing  certain  provisions set forth in Rule 12b-1.  Each Fund's Class A, B
and C  Distribution  Plans have been  approved by the FUND's  Board of Trustees,
including a majority of the Trustees who are not interested persons of the FUND,
as defined in the 1940 Act ("Independent  Trustees"),  and the Trustees who have
no  direct  or  indirect  financial  interest  in the  Distribution  Plan or any
agreement  related  thereto (the "Rule 12b-1  Trustees," who are the same as the
Independent Trustees).

     The National  Association of Securities  Dealers,  Inc. ("NASD")  currently
limits the amount that a Fund may pay annually in distribution costs for sale of
its shares and shareholder  service fees. The NASD limits annual expenditures to
1% of the aggregate  average daily net asset value of its shares, of which 0.75%
may be  used  to pay  such  distribution  costs  and  0.25%  may be  used to pay
shareholder  service fees. The NASD also limits the aggregate amount that a Fund
may pay for such  distribution  costs to 6.25% of gross  share  sales  since the
inception  of a 12b-1  Plan,  plus  interest  at the prime  rate plus 1% on such
amounts (less any  contingent  deferred  sales charges paid by  shareholders  to
KDI).

CLASS A DISTRIBUTION PLAN

     The Class A Distribution Plan provides that a Fund may expend daily amounts
at an annual rate  currently  limited to 0.15% of the Fund's  average  daily net
asset  value  attributable  to Class A shares to finance  any  activity  that is
primarily intended to result in the sale of Class A shares,  including,  without
limitation,  expenditures consisting of payments to a principal underwriter of a
Fund (currently the Principal  Underwriter) to enable the Principal  Underwriter
to pay or to have paid to others who sell Class A shares a service or other fee,
at such  intervals as the Principal  Underwriter  may  determine,  in respect of
Class A shares  maintained by such  recipients  outstanding  on the books of the
FUND for specified periods.

     Amounts paid by a Fund under its Class A  Distribution  Plan are  currently
used to pay  others,  such as dealers,  service  fees at an annual rate of up to
0.15% of the  average  net  asset  value of  Class A shares  maintained  by such
recipients outstanding on the books of the FUND for specified periods.

CLASS B DISTRIBUTION PLANS

     Each Fund has adopted Distribution Plans for its Class B shares. Each Class
B Distribution Plan provides that the Fund may expend daily amounts at an annual
rate of up to 1.00% of the Fund's average daily net asset value  attributable to
Class B shares  (currently  limited to 0.90%) to finance  any  activity  that is
primarily intended to result in the sale of Class B shares,  including,  without
limitation,  expenditures consisting of payments to the principal underwriter of
the Fund  (currently  the  Principal  Underwriter)  (1) to enable the  Principal
Underwriter to pay to others (dealers)  commissions in respect of Class B shares
sold since inception of the  Distribution  Plan; and (2) to enable the Principal
Underwriter to pay or to have paid to others a service fee, at such intervals as
the Principal Underwriter may determine, in respect of Class B shares maintained
by any such  recipients  outstanding  on the  books  of the  Fund for  specified
periods.

     The  Principal  Underwriter  generally  reallows  to  brokers  or  others a
commission equal to 4.00% of the price paid for each Class B share sold plus the
first year's service fee in advance in the amount of 0.15% of the price paid for
each Class B share sold. Beginning approximately 12 months after the purchase of
a Class B share,  the broker or other party  receives  service fees at an annual
rate of  0.15% of the  average  daily  net  asset  value  of such  Class B share
maintained by the recipient  outstanding  on the books of the Fund for specified
periods.

     The Principal Underwriter intends, but is not obligated, to continue to pay
or  accrue  distribution  charges  incurred  in  connection  with  each  Class B
Distribution  Plan that exceed current annual payments  permitted to be received
by the Principal Underwriter from the Fund. The Principal Underwriter intends to
seek full  payment of such charges from a Fund  (together  with annual  interest
thereon at the prime rate plus one  percent)  at such time in the future as, and
to the extent that,  payment  thereof by the Fund would be within the  permitted
limits.

     If the FUND's  Independent  Trustees  authorize such  payments,  the effect
would be to extend the period of time  during  which a Fund  incurs the  maximum
amount  of  costs  allowed  by  a  Class  B  Distribution  Plan.  If a  Class  B
Distribution  Plan  is  terminated,  the  Principal  Underwriter  will  ask  the
Independent  Trustees to take whatever  action they deem  appropriate  under the
circumstances with respect to payment of such amounts.

     In connection with financing its distribution costs,  including  commission
advances  to  dealers  and  others,  the  Principal  Underwriter  has  sold to a
financial  institution  substantially all of its 12b-1 fee collection rights and
contingent  deferred sales charge collection rights in respect of Class B shares
sold during the two-year period commencing  approximately June 1, 1995. The FUND
has  agreed  not to reduce  the rate of payment of 12b-1 fees in respect of such
Class B shares unless it terminated such shares'  Distribution  Plan completely.
If it terminated  such  Distribution  Plan,  the FUND may be subject to possible
adverse distribution consequences.

CLASS C DISTRIBUTION PLAN

     The Class C Distribution Plan provides that a Fund may expend daily amounts
at an annual  rate of up to 1.00% of the Fund's  average  daily net asset  value
attributable  to Class C shares  (currently  limited  to 0.90%) to  finance  any
activity  that is  primarily  intended  to result in the sale of Class C shares,
including,  without  limitation,  expenditures  consisting  of  payments  to the
principal  underwriter of the Fund (currently the Principal  Underwriter) (1) to
enable the  Principal  Underwriter  to pay to others  (dealers)  commissions  in
respect of Class C shares sold since inception of the Distribution Plan; and (2)
to enable the Principal  Underwriter  to pay or to have paid to others a service
fee, at such intervals as the Principal Underwriter may determine, in respect of
Class C shares maintained by any such recipients outstanding on the books of the
Fund for specified periods.

     The  Principal  Underwriter  generally  reallows  to  brokers  or  others a
commission  in the amount of 0.75% of the price paid for each Class C share sold
plus the first year's service fee in advance in the amount of 0.25% of the price
paid for each Class C share sold. Beginning  approximately  fifteen months after
purchase,  brokers or others  receive a  commission  at an annual  rate of 0.75%
(subject  to NASD rules)  plus  service  fees at the annual rate of 0.25% of the
average daily net asset value of each Class C share maintained by the recipients
outstanding on the books of the Fund for specified periods.

DISTRIBUTION PLANS IN GENERAL

     Each of the  Distribution  Plans may be terminated as to a Fund at any time
by vote of the Rule 12b-1 Trustees or by a vote of a majority of the appropriate
outstanding voting shares of the Fund.

     Unreimbursed  distribution expenses at November 30, 1994 for Class B shares
were  $784,751  (6.87% of Class B net assets at November  30, 1994) and $862,192
(6.88% of Class B net assets at November  30, 1994) for the  California  Insured
Fund and the Missouri Tax Free Fund, respectively.

     Any  change in a  Distribution  Plan that  would  materially  increase  the
distribution  expenses of the affected Fund provided for in a Distribution  Plan
requires shareholder approval.  Otherwise, the Distribution Plans may be amended
by the Trustees, including the Rule 12b-1 Trustees.

     While the  Distribution  Plans are in effect,  the FUND will be required to
commit the selection and  nomination of candidates for  Independent  Trustees to
the discretion of the Independent Trustees.

     The total amounts paid by a Fund under the foregoing  arrangements  may not
exceed the maximum Distribution Plan limits specified above, and the amounts and
purposes of expenditures  under a Distribution Plan must be reported to the Rule
12b-1 Trustees quarterly. The Rule 12b-1 Trustees may require or approve changes
in the  implementation  or operation of a Distribution Plan and may also require
that total  expenditures  by a Fund  under a  Distribution  Plan be kept  within
limits lower than the maximum amount permitted by a Distribution  Plan as stated
above.

     The Independent Trustees of the FUND have determined that the sales of each
Fund's shares resulting from payments under the Distribution  Plans are expected
to benefit such Fund.

     During the period February 1, 1994 (Commencement of Operations) to November
30, 1994,  the  California  Insured Fund and the Missouri Tax Free Fund paid the
Principal  Underwriter (i) $2,813,  and $1,634,  respectively,  pursuant to each
Fund's Class A  Distribution  Plan;  (ii)  $60,793,  and $61,502,  respectively,
pursuant to each Fund's Class B Distribution Plan; and (iii) $3,259, and $6,508,
respectively, pursuant to each Fund's Class C Distribution Plan.

     Presently,  a Fund's  class-specific  expenses are limited to  Distribution
Plan  expenses  incurred  by a  class  of  shares  pursuant  to  its  respective
Distribution Plan.


- --------------------------------------------------------------------------------
                               INVESTMENT ADVISER
- --------------------------------------------------------------------------------

     Subject  to the  general  supervision  of the  FUND's  Board  of  Trustees,
Keystone  serves as investment  adviser to the FUND and is  responsible  for the
overall management of the FUND's business and affairs.

     Keystone, located at 200 Berkeley Street, Boston, Massachusetts 02116-5034,
has provided investment advisory and management services to investment companies
and private accounts since it was organized in 1932.  Keystone is a wholly-owned
subsidiary of Keystone Investments,  200 Berkeley Street, Boston,  Massachusetts
02116-5034.  Keystone Investments,  a corporation  predominantly owned by former
and current  members of  management  of Keystone  and its  affiliates,  provides
accounting,  bookkeeping,  legal,  personnel and general  corporate  services to
Keystone,  its  affiliates  and the Keystone  Investments  Family of Funds.  The
shares of Keystone Group common stock  beneficially owned by management are held
in a number of voting trusts, the trustees of which are George Bissel, Albert H.
Elfner, III, Edward F. Godfrey and Ralph J. Spuehler, Jr.

     Pursuant to its Investment Advisory and Management  Agreement with the FUND
(the "Advisory Agreement") and subject to the supervision of the FUND's Board of
Trustees,  Keystone  manages and  administers  the operation of the FUND and its
Funds,  and manages the  investment  and  reinvestment  of each Fund's assets in
conformity with such Fund's investment objectives and restrictions. The Advisory
Agreement  stipulates  that Keystone shall provide  office space,  all necessary
office  facilities,  equipment and personnel in connection  with its services as
well as pay or  reimburse  the FUND for the  compensation  of FUND  officers and
Trustees who are affiliated with the investment adviser.  The Advisory Agreement
requires  Keystone to pay all of its expenses  incurred in  connection  with its
services.  All charges and expenses other than those specifically referred to as
being borne by Keystone will be paid by the FUND, including, but not limited to,
custodian charges and expenses;  bookkeeping and auditors' charges and expenses;
transfer  agent charges and expenses;  fees of Independent  Trustees;  brokerage
commissions,  brokers' fees and expenses;  issue and transfer  taxes;  costs and
expenses  under  the  Distribution  Plans;  taxes  and  trust  fees  payable  to
governmental agencies; the costs of share certificates; fees and expenses of the
registration  and  qualification  of the FUND and its shares with the Securities
and  Exchange  Commission  (sometimes  referred  to  herein  as the "SEC" or the
"Commission") or under state or other  securities  laws;  expenses of preparing,
printing  and  mailing  prospectuses,   statements  of  additional  information,
notices,  reports and proxy materials to  shareholders of the FUND;  expenses of
shareholders' and Trustees' meetings;  charges and expenses of legal counsel for
the FUND and for the  Trustees  of the FUND on  matters  relating  to the  FUND;
charges and expenses of filing  annual and other  reports with the SEC and other
authorities; and all extraordinary charges and expenses of the FUND.

     Each Fund pays  Keystone a fee for its  services  to the Fund at the annual
rate set forth below:

Management                                Aggregate Net Asset Value
Fee                                       of the shares of the Fund
- -------------------------------------------------------------------
0.55%    of the first                           $  50,000,000, plus
0.50%    of the next                            $  50,000,000, plus
0.45%    of the next                            $ 100,000,000, plus
0.40%    of the next                            $ 100,000,000, plus
0.35%    of the next                            $ 100,000,000, plus
0.30%    of the next                            $ 100,000,000, plus
0.25%    of amounts over                        $ 500,000,000

computed as of the close of business each business day and paid daily.

     During the period February 1, 1994 (commencement of operations) to November
30,  1994,  the  California  Insured Fund and the Missouri Tax Free Fund paid or
accrued to Keystone  investment  management and administrative  services fees of
$49,627 and $47,930, respectively.

     The  Advisory  Agreement  continues  in  effect  from  year to year only if
approved  at least  annually  by the FUND's  Board of Trustees or by a vote of a
majority  of the  outstanding  shares of each Fund,  and such  renewal  has been
approved by the vote of a majority of the Independent Trustees cast in person at
a meeting  called  for the  purpose  of voting on such  approval.  The  Advisory
Agreement may be terminated,  without penalty, on 60 days' written notice by the
FUND's  Board of Trustees or by a vote of a majority  of  outstanding  shares of
each  Fund.  The  Advisory  Agreement  will  terminate  automatically  upon  its
"assignment" as that term is defined in the 1940 Act.

     Currently,  Keystone has voluntarily limited the expenses of Class A shares
to 0.75% of average daily net assets until December 31, 1995 and has voluntarily
limited the  expenses of Class B and C shares to 1.50% of each  class's  average
daily net assets until  December  31, 1995.  Thereafter,  a  redetermination  of
whether to continue these expense  limitations and, if so, at what rate, will be
made.  Keystone will not be required to make such reimbursement to the extent it
would result in a Fund's inability to qualify as a regulated  investment company
under  the  provisions  of  the  Code.  In  accordance   with  certain   expense
limitations,  for the fiscal period ended November 30, 1994, Keystone reimbursed
the  California  Insured  Fund and the  Missouri  Tax Free Fund (i)  $23,507 and
$12,109, respectively,  with respect to each Fund's Class A shares; (ii) $81,857
and $91,759, respectively, with respect to each Fund's Class B shares; and (iii)
$4,427 and $10,208, respectively, with respect to each Fund's Class C shares.

     Each Fund is subject to certain annual state expense limitations,  the most
restrictive of which is as follows:

     2.5% of the first $30 million of Fund average net assets;
     2.0% of the next $70 million of Fund average net assets; and
     1.5% of Fund average net assets over $100 million.


- --------------------------------------------------------------------------------
                             TRUSTEES AND OFFICERS
- --------------------------------------------------------------------------------

     Trustees and officers of the FUND, their principal  occupations and some of
their affiliations over the last five years are as follows:

*ALBERT H. ELFNER,  III:  President,  Chief Executive Officer and Trustee of the
     Fund;  Chairman  of the  Board,  President,  Director  and Chief  Executive
     Officer of Keystone  Investments;  President,  Chief Executive  Officer and
     Trustee or Director of all 30 Funds in the Keystone  Investments  Family of
     Funds; Director and Chairman of the Board, Chief Executive Officer and Vice
     Chairman  of  Keystone;  Chairman  of the Board and  Director  of  Keystone
     Institutional  Company,  Inc.  ("Keystone  Institutional")  (formerly named
     Keystone  Investment  Management  Corporation),  and Keystone  Fixed Income
     Advisors ("KFIA"); Director, Chairman of the Board, Chief Executive Officer
     and President of Keystone  Management,  Keystone  Software Inc.  ("Keystone
     Software");  Director and  President of Hartwell  Keystone  Advisers,  Inc.
     ("Hartwell  Keystone"),   Keystone  Asset  Corporation,   Keystone  Capital
     Corporation,   and  Keystone  Trust  Company;  Director  of  the  Principal
     Underwriter,   KIRC,  and  Fiduciary  Investment  Company,  Inc.  ("FICO");
     Director  and Vice  President  of Robert Van  Partners,  Inc.;  Director of
     Boston  Children's  Services  Association;  Trustee  of  Anatolia  College,
     Middlesex School, and Middlebury College;  Member, Board of Governors,  New
     England Medical Center; and former Trustee of Neworld Bank.

FREDERICK AMLING: Trustee of the Fund; Trustee or Director of all other Keystone
     Investments  Funds;  Professor,   Finance  Department,   George  Washington
     University;  President, Amling & Company (investment advice); Member, Board
     of Advisers,  Credito Emilano (banking); and former Economics and Financial
     Consultant, Riggs National Bank.

CHARLES A.  AUSTIN  III:  Trustee of the Fund;  Trustee or Director of all other
     Keystone  Investments  Funds;  Investment  Counselor to Appleton  Partners,
     Inc.; former Managing Director,  Seaward Management Corporation (investment
     advice) and former Director,  Executive Vice President and Treasurer, State
     Street Research & Management Company (investment advice).

*GEORGE S. BISSELL:  Chairman of the Board and Trustee of the Fund;  Director of
     Keystone Investments;  Chairman of the Board and Trustee or Director of all
     other  Keystone  Investments  Funds;  Director and Chairman of the Board of
     Hartwell  Keystone;  Chairman of the Board and Trustee of Anatolia College;
     Trustee of University Hospital (and Chairman of its Investment  Committee);
     former  Chairman  of the Board  and Chief  Executive  Officer  of  Keystone
     Investments; and former Chief Executive Officer of the Fund.

EDWIN D. CAMPBELL:  Trustee  of the  Fund;  Trustee  or  Director  of all  other
     Keystone  Investments  Funds;  Executive  Director,  Coalition of Essential
     Schools,  Brown  University;  Director and former Executive Vice President,
     National Alliance of Business;  former Vice President,  Educational Testing
     Services; and former Dean, School of Business, Adelphi University.

CHARLES F.  CHAPIN:  Trustee  of the  Fund;  Trustee  or  Director  of all other
     Keystone Investments Funds; former Group Vice President, Textron Corp.; and
     former Director, Peoples Bank (Charlotte, N.C).

LEROY KEITH, JR.: Trustee of the Fund; Trustee or Director of all other Keystone
     Investments Funds; Director of Phoenix Total Return Fund and Equifax, Inc.;
     Trustee  of  Phoenix  Series  Fund,  Phoenix  Multi-Portfolio  Fund and The
     Phoenix Big Edge Series Fund; and former President, Morehouse College.

K. DUN  GIFFORD:  Trustee of the Fund; Trustee or Director of all other Keystone
     Investments  Funds;  Chairman of the Board,  Director  and  Executive  Vice
     President, The London Harness Company; Managing Partner,  Roscommon Capital
     Corp.; Trustee, Cambridge College; Chairman Emeritus and Director, American
     Institute of Food and Wine; Chief Executive Officer,  Gifford Gifts of Fine
     Foods; Chairman, Gifford, Drescher & Associates (environmental consulting);
     President,  Oldways Preservation and Exchange Trust (education); and former
     Director, Keystone Investments and Keystone.

F.  RAY  KEYSER,  JR.:  Trustee  of the Fund;  Trustee or  Director of all other
     Keystone  Investments  Funds;  Of Counsel,  Keyser,  Crowley & Meub,  P.C.;
     Member, Governor's (VT) Council of Economic Advisers; Chairman of the Board
     and Director,  Central  Vermont  Public Service  Corporation  and Hitchcock
     Clinic;  Director,  Vermont  Yankee  Nuclear  Power  Corporation,   Vermont
     Electric Power Company,  Inc.,  Grand Trunk  Corporation,  Central  Vermont
     Railway,  Inc.,  S.K.I.  Ltd.,  Sherburne  Corporation,  Union  Mutual Fire
     Insurance Company,  New England Guaranty  Insurance  Company,  Inc. and the
     Investment Company Institute;  former Governor of Vermont;  former Director
     and  President,  Associated  Industries  of Vermont;  former  Chairman  and
     President,  Vermont Marble Company; former Director of Keystone; and former
     Director and Chairman of the Board, Green Mountain Bank.

DAVID M. RICHARDSON:  Trustee  of the Fund;  Trustee  or  Director  of all other
     Keystone  Investments Funds;  Executive Vice President,  DHR International,
     Inc.  (executive  recruitment);   former  Senior  Vice  President,   Boyden
     International  Inc.  (executive  recruitment);  and Director,  Commerce and
     Industry  Association  of New Jersey,  411  International,  Inc.  and J & M
     Cumming Paper Co.

RICHARD J. SHIMA: Trustee of the Fund; Trustee or Director of all other Keystone
     Investments Funds; Chairman,  Environmental Warranty, Inc., and Consultant,
     Drake Beam Morin, Inc.  (executive  outplacement);  Director of Connecticut
     Natural Gas Corporation,  Trust Company of Connecticut,  Hartford Hospital,
     Old State House Association and Enhanced Financial Services,  Inc.; Member,
     Georgetown College Board of Advisors; Chairman, Board of Trustees, Hartford
     Graduate  Center;  Trustee,  Kingswood-Oxford  School and Greater  Hartford
     YMCA;  former  Director,  Executive Vice President and Vice Chairman of The
     Travelers Corporation; and former Managing Director of Russell Miller, Inc.

ANDREW J. SIMONS: Trustee of the Fund; Trustee or Director of all other Keystone
     Investments Funds; Partner,  Farrell, Fritz, Caemmerer,  Cleary, Barnosky &
     Armentano, P.C.; President, Nassau County Bar Association; former Associate
     Dean and Professor of Law, St. John's University School of Law.

EDWARD F. GODFREY:  Senior Vice President of the Fund;  Senior Vice President of
     all other Keystone  Investments  Funds;  Director,  Senior Vice  President,
     Chief  Financial  Officer  and  Treasurer  of  Keystone  Investments,   the
     Principal  Underwriter,   Keystone  Asset  Corporation,   Keystone  Capital
     Corporation,  Keystone Trust Company;  Treasurer of Keystone Institutional,
     Robert Van  Partners,  Inc.,  and FICO;  Treasurer and Director of Keystone
     Management,  Keystone Software,  and Hartwell Keystone;  Vice President and
     Treasurer of KFIA; and Director of KIRC.

JAMES R. McCALL: Senior Vice President of the Fund; Senior Vice President of all
     other Keystone Investments Funds; and President of Keystone.

KEVINJ.  MORRISSEY:  Treasurer  of the Fund;  Treasurer  of all  other  Keystone
     Investments  Funds;  Vice  President  of  Keystone  Investments;  Assistant
     Treasurer of FICO and Keystone;  and former Vice President and Treasurer of
     KIRC.

BETSY BLACHER: Vice  President  of the FUND;  Vice  President  of certain  other
     Keystone Investments Funds; and Senior Vice President of Keystone.

CHRISTOPHER P. CONKEY:  Vice  President of the FUND;  Vice  President of certain
     other Keystone Investments Funds; and Senior Vice President of Keystone.

ROSEMARY D. VAN ANTWERP: Senior Vice President and Secretary of the Fund; Senior
     Vice  President  and  Secretary of all other  Keystone  Investments  Funds;
     Senior Vice President,  General  Counsel and Secretary of Keystone;  Senior
     Vice President,  General  Counsel,  Secretary and Director of the Principal
     Underwriter,   Keystone  Management  and  Keystone  Software;  Senior  Vice
     President  and  General  Counsel of  Keystone  Institutional;  Senior  Vice
     President,  General  Counsel  and  Director  of FICO and KIRC;  Senior Vice
     President and Secretary of Hartwell Keystone and Robert Van Partners, Inc.;
     Vice  President  and  Secretary  of KFIA;  Senior Vice  President,  General
     Counsel and Secretary of Keystone Investments,  Keystone Asset Corporation,
     Keystone Capital Corporation and Keystone Trust Company.

* This Trustee may be considered an  "interested  person"  within the meaning of
the 1940 Act.

     Mr.  Elfner and Mr.  Bissell  are  "interested  persons" by virtue of their
positions as officers  and/or  Directors of Keystone  Investments and several of
its  affiliates  including  Keystone,  the Principal  Underwriter  and KIRC. Mr.
Elfner  and Mr.  Bissell  own  shares of  Keystone  Investments.  Mr.  Elfner is
Chairman  of the  Board,  Chief  Executive  Officer  and  Director  of  Keystone
Investments. Mr. Bissell is a Director of Keystone Investments.

     During the fiscal  period ended  November 30, 1994,  no Trustee  affiliated
with Keystone nor any officer  received any direct  remuneration  from the FUND.
During that same period, the nonaffiliated Trustees and officers of the FUND did
not receive any retainers or fees.  For the twelve month period ending  November
30, 1994,  fees paid to  Independent  Trustees on a fund complex wide basis were
approximately  $585,975.  On February 28, 1995, the FUND's Trustees and officers
did not beneficially own any of the FUND's then outstanding shares.

     The address of all Trustees and officers of the FUND and the address of the
FUND is 200 Berkeley Street, Boston, Massachusetts 02116-5034.


- --------------------------------------------------------------------------------
                             PRINCIPAL UNDERWRITER
- --------------------------------------------------------------------------------

     The  FUND  has  entered  into  a  Principal   Underwriting  Agreement  (the
"Underwriting  Agreement")  with  the  Principal  Underwriter,   a  wholly-owned
subsidiary of Keystone. The Principal  Underwriter,  as agent, has agreed to use
its best efforts to find  purchasers for the shares.  The Principal  Underwriter
may retain and employ  representatives to promote distribution of the shares and
may obtain orders from brokers,  dealers and others,  acting as principals,  for
sales of shares to them. The Underwriting  Agreement provides that the Principal
Underwriter  will bear the  expense  of  preparing,  printing  and  distributing
advertising and sales literature and prospectuses used by it. In its capacity as
principal underwriter,  the Principal Underwriter may receive payments from each
Fund pursuant to such Fund's Distribution Plans.

     All subscriptions  and sales of shares by the Principal  Underwriter are at
the offering price of the shares in accordance with the provisions of the FUND's
Declaration  of  Trust,   By-Laws,  the  current  prospectus  and  statement  of
additional information. All orders are subject to acceptance by the FUND and the
FUND  reserves the right in its sole  discretion  to reject any order  received.
Under the Underwriting  Agreement,  the FUND is not liable to anyone for failure
to accept any order.

     The FUND has agreed under the Underwriting Agreement to pay all expenses in
connection  with  registration of the shares of its Funds with the Commission as
well as auditing and filing fees in connection with  registration of such shares
under the various state "blue-sky" laws, and the Principal  Underwriter  assumes
the cost of sales  literature  and  preparation of  prospectuses  used by it and
certain other expenses.

     From time to time,  if in the  Principal  Underwriter's  judgment  it could
benefit the sales of a Fund's  shares,  the  Principal  Underwriter  may use its
discretion in providing to selected  dealers  promotional  materials and selling
aids,  including,  but not limited to, personal computers,  related software and
FUND data files.

     The  Principal  Underwriter  has agreed that it will in all  respects  duly
conform with all state and federal laws applicable to the sale of the shares and
will  indemnify and hold harmless the FUND,  and each person who has been, is or
may be a Trustee or officer of the FUND, against expenses reasonably incurred by
any of them in connection with any claim or in connection with any action,  suit
or  proceeding  to which any of them may be a party,  that  arises  out of or is
alleged to arise out of any  misrepresentation  or  omission to state a material
fact on the part of the Principal Underwriter or any other person for whose acts
the Principal Underwriter is responsible or is alleged to be responsible, unless
such misrepresentation or omission was made in reliance upon written information
furnished by the FUND.

     The Underwriting  Agreement  provides that it will remain in effect as long
as its terms and  continuance  are approved by a majority of the Trustees of the
FUND and a majority  of the FUND's  Rule 12b-1  Trustees  at least  annually  in
accordance with the 1940 Act and rules and regulations thereunder.

     The Underwriting Agreement may be terminated,  without penalty, on 60 days'
written  notice by a majority of the FUND's Rule 12b-1 Trustees or the Principal
Underwriter  or terminated as to any Fund by a vote of a majority of outstanding
shares of such Fund. The  Underwriting  Agreement  will terminate  automatically
upon its "assignment" as that term is defined in the 1940 Act.


- --------------------------------------------------------------------------------
                                   BROKERAGE
- --------------------------------------------------------------------------------

     It is the  policy of the  FUND,  in  effecting  transactions  in  portfolio
securities,  to seek best execution of orders at the most favorable prices.  The
determination  of what may constitute  best execution and price in the execution
of a securities  transaction  by a broker  involves a number of  considerations,
including, without limitation, the overall direct net economic result to a Fund,
involving both price paid or received and any  commissions and other costs paid,
the efficiency with which the transaction is effected, the ability to effect the
transaction  at all where a large block is  involved,  the  availability  of the
broker to stand  ready to  execute  potentially  difficult  transactions  in the
future and the financial strength and stability of the broker. Management weighs
such  considerations  in  determining  the overall  reasonableness  of brokerage
commissions paid.

     Subject  to the  foregoing,  a factor in the  selection  of  brokers is the
receipt of research services,  such as analyses and reports concerning  issuers,
industries,  securities,  economic factors and trends and other  statistical and
factual  information.  Any such  research  and  other  statistical  and  factual
information provided by brokers to a Fund is considered to be in addition to and
not in lieu of services  required to be performed by Keystone under the Advisory
Agreement.  The cost,  value and specific  application of such  information  are
indeterminable  and cannot be  practically  allocated  among the Funds and other
clients of Keystone who may  indirectly  benefit from the  availability  of such
information.  Similarly,  a Fund may indirectly  benefit from  information  made
available as a result of transactions effected for such other clients. Under the
Advisory  Agreement,  Keystone is permitted to pay higher brokerage  commissions
for  brokerage  and research  services in  accordance  with Section 28(e) of the
Securities  Exchange  Act of 1934.  In the event  Keystone  does  follow  such a
practice, it will do so on a basis that is fair and equitable to the Funds.

     The FUND expects that  purchases  and sales of  municipal  obligations  and
temporary  instruments  usually  will  be  principal   transactions.   Municipal
obligations and temporary  instruments are normally  purchased directly from the
issuer or from an underwriter or market maker for the securities.  There usually
will be no brokerage  commissions  paid by a Fund for such purchases.  Purchases
from  underwriters will include the underwriting  commission or concession,  and
purchases from dealers  serving as market makers will include a dealer's mark up
or  reflect  a  dealer's  mark  down.   Where   transactions  are  made  in  the
over-the-counter  market,  each Fund will deal with primary market makers unless
more favorable prices are otherwise obtainable.

     Each Fund may participate,  if and when  practicable,  in group bidding for
the  purchase  directly  from an issuer of  certain  securities  for the  Fund's
portfolio in order to take advantage of the lower  purchase  price  available to
members of such a group.

     Neither Keystone nor the Funds intend to place securities transactions with
any particular  broker-dealer or group thereof. The FUND's Board of Trustees has
determined,  however, that the Funds may follow a policy of considering sales of
shares as a factor in the  selection  of  broker-dealers  to  execute  portfolio
transactions,  subject to the  requirements  of best  execution,  including best
price, described above.

     The policy of the FUND with respect to brokerage is and will be reviewed by
the FUND's Board of Trustees from time to time.  Because of the  possibility  of
further regulatory developments affecting the securities exchanges and brokerage
practices  generally,  the  foregoing  practices  may be  changed,  modified  or
eliminated.

     Investment  decisions for the Funds are made independently by Keystone from
those of the other funds and  investment  accounts  managed by Keystone.  It may
frequently  develop that the same investment  decision is made for more than one
fund.  Simultaneous  transactions  are  inevitable  when  the same  security  is
suitable for the investment objective of more than one account. When two or more
funds or accounts are engaged in the purchase or sale of the same security,  the
transactions  are  allocated as to amount in  accordance  with a formula that is
equitable  to each fund or  account.  It is  recognized  that in some cases this
system could have a detrimental effect on the price or volume of the security as
far as the Funds are concerned. In other cases, however, it is believed that the
ability of a Fund to  participate  in volume  transactions  will produce  better
executions for the Fund.

     In no instance are portfolio securities purchased from or sold to Keystone,
the Principal  Underwriter or any of their affiliated persons, as defined in the
1940 Act and rules and regulations issued thereunder.

     During the fiscal period ended  November 30, 1994, the FUND did not pay any
brokerage commissions.


- --------------------------------------------------------------------------------
                              DECLARATION OF TRUST
- --------------------------------------------------------------------------------

MASSACHUSETTS BUSINESS TRUST

     The FUND is a Massachusetts  business trust established under a Declaration
of Trust dated September 13, 1990 ("Declaration of Trust").  The FUND is similar
in most respects to a business  corporation.  The principal  distinction between
the FUND and a corporation relates to the shareholder liability described below.
A copy of the  Declaration  of Trust  was  filed  as an  exhibit  to the  FUND's
Registration  Statement.  This summary is qualified in its entirety by reference
to the Declaration of Trust.

DESCRIPTION OF SHARES

     The Declaration of Trust  authorizes the issuance of an unlimited number of
shares of  beneficial  interest  of  classes  of  shares.  Each  share of a Fund
represents an equal proportionate interest in such Fund with each other share of
the Fund. Generally, each Fund currently issues three classes of shares, but may
issue additional classes or series of shares. Upon liquidation,  Fund shares are
entitled  to a pro rata  share of the Fund based on the  relative  net assets of
each class.  Shareholders  have no preemptive or conversion  rights.  Shares are
transferable,  redeemable  and  fully  assignable  as  collateral.  There are no
sinking fund provisions.

SHAREHOLDER LIABILITY

     Pursuant  to  certain   decisions   of  the  Supreme   Judicial   Court  of
Massachusetts, shareholders of a Massachusetts business trust may, under certain
circumstances,  be held personally liable as partners for the obligations of the
trust.  If the  FUND  were  held to be a  partnership,  the  possibility  of the
shareholders incurring financial loss for that reason appears remote because the
FUND's  Declaration  of Trust (1) contains an express  disclaimer of shareholder
liability  for  obligations  of the FUND;  and (2) requires  that notice of such
disclaimer be given in each agreement,  obligation or instrument entered into or
executed by the FUND or the Trustees;  and (3) provides for  indemnification out
of FUND property for any shareholder held personally  liable for the obligations
of the FUND.

VOTING RIGHTS

     Under the  Declaration  of Trust the FUND  does not hold  annual  meetings.
Shares of a Fund are  entitled  to one vote per  share.  Shares  generally  vote
together as one class on all matters, except that each Fund has exclusive voting
rights with respect to matters that affect only that Fund.  Classes of shares of
a Fund have equal voting  rights  except that each class of shares has exclusive
voting rights with respect to its respective Distribution Plan. No amendment may
be made to the  Declaration of Trust  adversely that affects any class of shares
without the  approval  of a majority  of the shares of that  class.  Shares have
non-cumulative  voting rights,  which means that the holders of more than 50% of
the shares voting for the election of Trustees can elect 100% of the Trustees to
be elected at a meeting and, in such event,  the holders of the remaining 50% or
less of the shares voting will not be able to elect any Trustees.

     After  the  initial  meeting  to elect  Trustees  no  further  meetings  of
shareholders for the purpose of electing  Trustees will be held, unless required
by law,  unless  and until  such time as less than a  majority  of the  Trustees
holding  office have been  elected by  shareholders,  at which time the Trustees
then in office will call a shareholders' meeting for election of Trustees.

     Except as set forth  above,  the  Trustees  shall  continue  to hold office
indefinitely,  unless  otherwise  required  by law,  and may  appoint  successor
Trustees. A Trustee may be removed from or cease to hold office (as the case may
be) (1) at any time by two-thirds vote of the remaining Trustees;  (2) when such
Trustee  becomes  mentally  or  physically  incapacitated;  or (3) at a  special
meeting of  shareholders by a two-thirds  vote of the  outstanding  shares.  Any
Trustee may voluntarily resign from office.

LIMITATION OF TRUSTEES' LIABILITY

     The  Declaration  of Trust provides that a Trustee shall be liable only for
his own willful  defaults  and, if  reasonable  care has been  exercised  in the
selection of officers,  agents,  employees or investment advisers,  shall not be
liable for any neglect or wrongdoing of any such person; provided, however, that
nothing  in the  Declaration  of Trust  shall  protect  a  Trustee  against  any
liability for his willful  misfeasance,  bad faith, gross negligence or reckless
disregard of his duties.

     The Trustees have absolute and exclusive  control over the  management  and
disposition  of all  assets of the Funds and may  perform  such acts as in their
sole  judgment  and  discretion  are  necessary  and proper for  conducting  the
business and affairs of the FUND or promoting  the interests of the FUND and its
Funds and the shareholders.


- --------------------------------------------------------------------------------
                 STANDARDIZED TOTAL RETURN AND YIELD QUOTATIONS
- --------------------------------------------------------------------------------

     Total return  quotations for a class of shares of a Fund as they may appear
from time to time in advertisements are calculated by finding the average annual
compounded  rates of return  over one,  five and ten year  periods,  or the time
periods  for  which  such  class of  shares  has been  effective,  whichever  is
relevant,  on a  hypothetical  $1,000  investment  that would equate the initial
amount  invested  in the class to the ending  redeemable  value.  To the initial
investment  all dividends and  distributions  are added,  and all recurring fees
charged to all shareholder  accounts are deducted.  The ending  redeemable value
assumes a complete redemption at the end of the relevant periods.

     The total returns for the Class A shares of the California Insured Fund and
the  Missouri  Tax Free Fund for the period  February 1, 1994  (commencement  of
operations) to November 30, 1994 were (13.12)% and (12.89)%,  respectively.  The
total  returns  for the Class B shares of the  California  Insured  Fund and the
Missouri  Tax  Free  Fund for the  period  February  1,  1994  (commencement  of
operations) to November 30, 1994 were (11.60)% and (11.66)%,  respectively.  The
total  returns  for the Class C shares of the  California  Insured  Fund and the
Missouri  Tax  Free  Fund for the  period  February  1,  1994  (commencement  of
operations) to November 30, 1994 were (9.95)% and (10.11)%, respectively.

     Current  yield  quotations  as  they  may  appear  from  time  to  time  in
advertisements will consist of a quotation based on a 30-day period ended on the
date of the most recent  balance  sheet of a Fund,  computed by dividing the net
investment  income per share  earned  during the period by the maximum  offering
price per share on the last day of the base  period.  Such  yield  will  include
income from sources other than municipal obligations, if any.

     The current  yields for the Class A shares of the  California  Insured Fund
and the  Missouri Tax Free Fund for the 30-day  period  ended  November 30, 1994
were 6.19% and 6.12%, respectively. The current yields for the Class B shares of
the California Insured Fund and the Missouri Tax Free Fund for the 30-day period
ended November 30, 1994 were 5.73% and 5.62%,  respectively.  The current yields
for the Class C shares of the California  Insured Fund and the Missouri Tax Free
Fund for the  30-day  period  ended  November  30,  1994 were  5.73% and  5.64%,
respectively.

     Tax equivalent yield is, in general,  the current yield divided by a factor
equal to one minus a stated  income  tax rate and  reflects  the yield a taxable
investment  would  have to  achieve  in order to equal on an  after-tax  basis a
tax-exempt yield.

     The tax equivalent yields for the Class A shares of the California  Insured
Fund and the  Missouri  Tax Free Fund for an  investor  in the 31%  federal  tax
bracket  for the 30-day  period  ended  November  30, 1994 were 8.97% and 8.87%,
respectively. The tax equivalent yields for the Class B shares of the California
Insured  Fund and the  Missouri Tax Free Fund for an investor in the 31% federal
tax bracket for the 30-day period ended  November 30, 1994 were 8.30% and 8.14%,
respectively. The tax equivalent yields for the Class C shares of the California
Insured  Fund and the  Missouri Tax Free Fund for an investor in the 31% federal
tax bracket for the 30-day period ended  November 30, 1994 were 8.30% and 8.17%,
respectively.

     Any  given  yield  or  total  return  quotation  should  not be  considered
representative of the Fund's yield or total return for any future period.


- --------------------------------------------------------------------------------
                             ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------

     As of February 28, 1995, the following  shareholders  of record owned 5% or
more of the California Insured Fund's outstanding Class A shares:

         SHAREHOLDER OF RECORD                            % OF CLASS

         Merrill Lynch Pierce Fenner & Pierce                 13.53%
         Attn: Book Entry
         4800 Deer Lake Drive East, 3rd Floor
         Jacksonville, FL 32246-6484



<PAGE>


         Wydea Haddad TTEE                                     6.73%
         The Haddad Family Trust "B"
         UA DTD 01-18-78
         4514 Noeline Way
         Encino, CA 91436-2108

     As of February 28, 1995, the following  shareholders  of record owned 5% or
more of the California Insured Fund's outstanding Class B shares:

         SHAREHOLDER OF RECORD                            % OF CLASS

         Merrill Lynch Pierce Fenner & Pierce                 27.41%
         Attn: Book Entry
         4800 Deer Lake Drive East, 3rd Floor
         Jacksonville, FL 32246-6484

         John O. Fleming                                       5.54%
         Agnes Mae Fleming TTEES
         UTA DTD 10/21/91
         FBO Fleming  Family Rev Trust
         8339 G Avenue
         Coronado, CA 82118-2519

     As of February 28, 1995, the following  shareholders  of record owned 5% or
more of the California Insured Fund's outstanding Class C shares:

         SHAREHOLDER OF RECORD                            % OF CLASS

         Victor E. Rylander                                   27.94%
         Lucille Rylander JT WROS
         4102 Caflur Avenue
         San Diego, California 92117-4436

         Richard B. Smith                                     12.88%
         Doris M. Smith TTEE
         U/A DTD 04-08-93
         Smith Trust
         4853 Mt. Royal Court
         San Diego, CA 92117-2917

         William L. O'Daly                                     7.98%
         Madeline M. O'Daly TTEES
         U/A DTD 09-05-89
         O'Daly Family Trust
         19601 Vintage Street
         Northridge, CA 91324-1045

         Alfred Bodek                                          7.81%
         26012 Eshelman Avenue
         Lomita, CA 90717-3225

         Keystone Distributors Inc.                            6.86%
         Attn: Treasury Dept., 21st Floor
         Attn: Kevin Stoddard
         200 Berkeley Street
         Boston, MA 02116-5022

         Robert Lee Davis                                      5.13%
         13566 Avenida Del Charro
         El Cajon, CA 992021-2119

     As of February 28, 1995, the following  shareholders  of record owned 5% or
more of the Missouri Tax Free Fund's outstanding Class A shares:

         SHAREHOLDER OF RECORD                            % OF CLASS

         Shoji Entertainment Inc.                             45.63%
         2709 State Highway 248
         Branson, MO 65616-9226

         Merrill Lynch Pierce Fenner & Pierce                  7.60%
         Attn: Book Entry
         4800 Deer Lake Drive East, 3rd Floor
         Jacksonville, FL 32246-6484

     As of February 28, 1995,  the following  shareholder  of record owned 5% or
more of the Missouri Tax Free Fund's outstanding Class B shares:

         SHAREHOLDER OF RECORD                            % OF CLASS

         Merrill Lynch Pierce Fenner & Pierce                 21.98%
         Attn: Book Entry
         4800 Deer Lake Drive East, 3rd Floor
         Jacksonville, FL 32246-6484

     As of February 28, 1995, the following  shareholders  of record owned 5% or
more of the Missouri Tax Free Fund's outstanding Class C shares:

         SHAREHOLDER OF RECORD                            % OF CLASS

         Painewebber FBO                                      10.08%
         Jeannette M. Holz Trust
         Jeannette M. Holz TTEE
         U/A DTD 10/15/83
         Box 698
         Lake Ozark, MO 65049-0698

         Kathy D. Reise                                        7.16%
         6926 Broken Oak Drive
         Saint Louis, MO 63129

         Painewebber FBO                                       7.12%
         Anne B. Moore & Allen
         Moore III TTEES
         The Anne B. Moore Trust
         U/A DTD 7/27/87
         1024 West Desert Hills Drive
         Green Valley, AZ 85614

         Dorothy Keay                                          7.03%
         84 So. Beach Street, Apt. 204
         Ormond Beach, FL 32174

         Painewebber FBO                                       7.01%
         Iman Karmadi
         4618 Warwick Boulevard, Apt. 6A
         Kansas City, MO 64112-1780

         Painewebber FBO                                       6.82%
         Lorraine Wilder TTEE
         Lorraine Wilder Rev Tr
         U/A DTD 7-26-88
         444 1/2 Jackson
         Chillicothe, MO 64601

         Painewebber FBO                                       5.37%
         Allen Moore III & Anne B. Moore
         Trustees of Allen Moore III Trust
         UAD 7/27/87
         1024 West Desert Hills Drive
         Green Valley, AZ 85614

         Shoji Babuchi                                         5.25%
         Dorothy Babuchi JT TEN
         2709 State Highway 2248
         Branson, MO 65616-9226

     State  Street  Bank  and  Trust  Company,  225  Franklin  Street,   Boston,
Massachusetts  02110,  is the custodian of all  securities  and cash of the FUND
(the "Custodian"). The Custodian performs no investment management functions for
the FUND,  but,  in addition  to its  custodial  services,  is  responsible  for
accounting and related recordkeeping on behalf of the FUND.

     KPMG Peat Marwick  LLP,  One Boston  Place,  Boston,  Massachusetts  02108,
Certified Public Accountants, are the independent auditors for the FUND.

     KIRC, located at 101 Main Street, Cambridge, Massachusetts 02142-1519, is a
wholly-owned  subsidiary  of Keystone  and acts as transfer  agent and  dividend
disbursing agent for the FUND.

     Except as otherwise  stated in its  prospectus or required by law, the FUND
reserves  the right to change  the terms of the offer  stated in its  prospectus
without shareholder  approval,  including the right to impose or change fees for
services provided.

     No dealer,  salesman or other person is authorized to give any  information
or to make any representation not contained in the FUND's prospectus,  statement
of additional information or in supplemental sales literature issued by the FUND
or  the  Principal  Underwriter,  and no  person  is  entitled  to  rely  on any
information or representation not contained therein.

     The FUND's prospectus and statement of additional  information omit certain
information contained in the registration statement filed with the Commission, a
copy of  which  may be  obtained  from  the  Commission's  principal  office  in
Washington, D.C. upon payment of the fee prescribed by the rules and regulations
promulgated by the Commission.

     The  FUND  is one of 15  different  investment  companies  in the  Keystone
America Family,  which offers a range of choices to serve shareholder  needs. In
addition to the FUND the Keystone  America Family  includes the following  funds
having the various investment objectives described below:

KEYSTONE  CAPITAL  PRESERVATION  AND  INCOME  FUND - Seeks high level of current
income,  consistent with low volatility of principal, by investing in adjustable
rate   securities   issued   by   the   U.S.   government,   its   agencies   or
instrumentalities.

KEYSTONE  FUND FOR TOTAL  RETURN - Seeks  total  return  from a  combination  of
capital growth and income from dividend paying quality common stocks,  preferred
stocks,  convertible bonds, other fixed-income securities and foreign securities
(up to 25%).

KEYSTONE GLOBAL OPPORTUNITIES FUND - Seeks long-term capital growth from foreign
and domestic securities.

KEYSTONE GOVERNMENT SECURITIES FUND - Seeks income and capital preservation from
U.S. government securities.

KEYSTONE   AMERICA   HARTWELL   EMERGING  GROWTH  FUND,  INC.  -  Seeks  capital
appreciation by investment  primarily in small and  medium-sized  companies in a
relatively  early  stage of  development  that  are  principally  traded  in the
over-the-counter market.

KEYSTONE  HARTWELL  GROWTH FUND - Seeks  capital  appreciation  by investment in
securities selected for their long-term growth prospects.

KEYSTONE  INTERMEDIATE TERM BOND FUND - Seeks income,  capital  preservation and
price appreciation potential from investment grade corporate bonds.

KEYSTONE  AMERICA OMEGA FUND,  INC. - Seeks maximum  capital  growth from common
stocks and securities convertible into common stocks.

KEYSTONE STATE TAX FREE FUND - A mutual fund  consisting of five separate series
of shares  investing in different  portfolio  securities which seeks the highest
possible  current income,  exempt from federal income taxes and applicable state
taxes.

KEYSTONE  STRATEGIC  INCOME  FUND - Seeks  high yield and  capital  appreciation
potential from corporate bonds,  discount bonds,  convertible  bonds,  preferred
stock and foreign bonds (up to 25%).

KEYSTONE  TAX FREE INCOME FUND - Seeks income  exempt from federal  income taxes
and capital preservation from the four highest grades of municipal bonds.

KEYSTONE  WORLD BOND FUND - Seeks total  return from  interest  income,  capital
gains and losses and currency  exchange gains and losses from investment in debt
securities denominated in U.S. and foreign currencies.

KEYSTONE  FUND OF THE  AMERICAS  - Seeks  long term  growth of  capital  through
investments  in equity and debt  securities  in North America (the United States
and Canada) and Latin America (Mexico and South and central America.

KEYSTONE  STRATEGIC  DEVELOPMENT  FUND -  Seeks  long  term  capital  growth  by
investing primarily in equity securities.
<PAGE>
- --------------------------------------------------------------------------------
                                   APPENDIX A
- --------------------------------------------------------------------------------

               KEYSTONE AMERICA CALIFORNIA INSURED TAX FREE FUND
GENERAL

   
     California's  economy  is the  largest  among the 50 states  and one of the
largest in the world.  The State's  population  of almost 32 million  represents
12.3% of the total U.S. population and grew by 27% in the 1980's. Total personal
income in the State,  at an estimated $683 billion in 1993,  accounts for almost
13% of all personal income in the nation. Total employment is almost 14 million,
the majority of which is in the service, trade and manufacturing sectors.
    

         From  mid-1990 to late 1993,  the State  suffered a recession  with the
worst economic,  fiscal and budget  conditions  since the 1930's.  Construction,
manufacturing (especially aerospace), and financial services, among others, were
all severely affected,  particularly in Southern California. Job losses were the
worst of any post-war  recession.  Employment levels stabilized by late 1993 and
steady growth  occurred in 1994 and is expected in 1995, but  pre-recession  job
levels are not  expected  to be reached for  several  more years.  Unemployment,
while higher than the national average, has come down about 3% in 1994. Economic
indicators  show a steady  recovery  underway in  California  since the start of
1994.

CONSTITUTIONAL LIMITATIONS ON TAXES AND APPROPRIATIONS

   
         LIMITATION ON TAXES.  Certain California  municipal  obligations may be
obligations of issuers that rely in whole or in part, directly or indirectly, on
ad  valorem  property  taxes  as a source  of  revenue.  The  taxing  powers  of
California  local  governments and districts are limited by Article XIIIA of the
California  Constitution,  enacted by the voters in 1978 and  commonly  known as
"Proposition  13."  Briefly,  Article  XIIIA limits to 1% of full cash value the
rate of ad valorem  property taxes on real property and generally  restricts the
reassessment of property to 2% per year,  except upon new construction or change
of ownership (subject to a number of exemptions).  Taxing entities may, however,
raise ad valorem taxes above the 1% limit to pay debt service on  voter-approved
bonded indebtedness.
    

         Under  Article  XIIIA,  the  basic 1% ad  valorem  tax levy is  applied
against the assessed value of property as of the owner's date of acquisition (or
as of March 1, 1975, if acquired earlier), subject to certain adjustments.  This
system has  resulted  in widely  varying  amounts of tax on  similarly  situated
properties.  Several lawsuits have been filed challenging the  acquisition-based
assessment system of Proposition 13, and on June 18, 1992 the U.S. Supreme Court
announced a decision upholding Proposition 13.

   
         Article XIIIA prohibits local governments from raising revenues through
ad valorem  property  taxes above the 1% limit;  it also requires  voters of any
governmental  unit to give two-thirds  approval to levy any "special tax." Court
decisions,  however,  allowed  non-voter  approved levy of "general  taxes" that
were not dedicated to a specific use. In response to these decisions, the voters
of the State in 1986 adopted an initiative statute that imposed  significant new
limits on the ability of local entities to raise or levy general  taxes,  except
by  receiving  majority  local  voter  approval.  Significant  elements  of this
initiative,  "Proposition  62," have been  overturned in recent court cases.  An
initiative   proposed  to  re-enact  the  provisions  of  Proposition  62  as  a
constitutional amendment was defeated by the voters in November 1990, but such a
proposal may be renewed in the future.

         APPROPRIATION  LIMITS.  The State and its local governments are subject
to an annual  "appropriations  limit" imposed by Article XIIIB of the California
Constitution,  enacted  by the  voters  in 1979  and  significantly  amended  by
Propositions 98 and 111 in 1988 and 1990, respectively.  Article XIIIB prohibits
the State or any covered local government from spending  "appropriations subject
to limitation" in excess of the  appropriations  limit imposed.  "Appropriations
subject to limitation"  are  authorizations  to spend "proceeds of taxes," which
consist of tax  revenues  and  certain  other  funds,  including  proceeds  from
regulatory  licenses,  user  charges  or other  fees,  to the  extent  that such
proceeds  exceed the cost of providing the product or service,  but "proceeds of
taxes" excludes most State subventions to local governments. No limit is imposed
on appropriations  of funds that are not "proceeds of taxes," such as reasonable
user charges or fees, and certain other non-tax funds, including bond proceeds.
    

         Among the expenditures not included in the Article XIIIB appropriations
limit  are (1) the debt  service  cost of bonds  issued or  authorized  prior to
January 1, 1979, or subsequently  authorized by the voters,  (2)  appropriations
arising from certain  emergencies  declared by the Governor,  (3) appropriations
for certain capital outlay  projects,  (4)  appropriations  by the State of post
1989 increases in gasoline taxes and vehicle weight fees, and (5) appropriations
made in certain cases of emergency.

         The appropriations  limit for each year is adjusted annually to reflect
changes  in  cost  of  living  and  population  and  any  transfers  of  service
responsibilities   between   governmental   units.   The  definitions  for  such
adjustments  were  liberalized  in 1990 to  follow  more  closely  growth in the
State's economy.

         "Excess" revenues are measured over a two year cycle. Local governments
must return any excess to  taxpayers by rate  reductions.  The State must refund
50% paid to schools and community colleges.  With more liberal annual adjustment
factors since 1988, and depressed  revenues since 1990 because of the recession,
few  governments,  including  the  State,  are  currently  operating  near their
spending limits,  but this condition may change over time. Local governments may
by voter approval exceed their spending limits for up to four years.

   
         Because  of the  complex  nature  of  Articles  XIIIA  and XIIIB of the
California  Constitution,  the ambiguities and possible inconsistencies of their
terms, and the impossibility of predicting  future  appropriations or changes in
population  and  cost  of  living,  and  the  probability  of  continuing  legal
challenges,  it is not  currently  possible  to  determine  fully the  impact of
Article XIIIA or Article XIIIB on California  municipal  obligations.  It is not
presently possible to predict the outcome of any pending litigation with respect
to the ultimate scope,  impact or  constitutionality  of either Article XIIIA or
Article XIIIB, or the impact of any such  determinations  upon State agencies or
local  governments,  or  upon  their  ability  to  pay  debt  service  on  their
obligations. Future initiatives or legislative changes in laws or the California
Constitution  may also affect the ability of the State or local issuers to repay
their obligations.
    

OBLIGATIONS OF THE STATE OF CALIFORNIA

         As of March 1,  1995,  the State had  approximately  $18.9  billion  of
general obligation bonds outstanding,  and $3.7 billion remained  authorized but
unissued.   In  addition,  at  June  30,  1994,  the  State  had  lease-purchase
obligations,  payable  from the State's  General  Fund,  of  approximately  $5.1
billion. In fiscal year 1993-1994,  debt service on general obligation bonds and
lease-purchase  debt was approximately 5.2% of General Fund revenues.  The State
has  paid  the  principal  of and  interest  on its  general  obligation  bonds,
lease-purchase debt and short-term obligations when due.

RECENT FINANCIAL RESULTS

         The principal  sources of General Fund  revenues in 1993-1994  were the
California  personal  income tax (44% of total  revenues),  the sales tax (35%),
bank and corporation  taxes (12%),  and the gross premium tax on insurance (3%).
The State  maintains a Special  Fund for Economic  Uncertainties,"  derived from
General Fund revenues, as a reserve to meet cash needs of the General Fund.

         GENERAL. Throughout the 1980's, State spending increased rapidly as the
State population and economy also grew rapidly, including increased spending for
many  assistance  programs  to local  governments,  which  were  constrained  by
Proposition  13 and other laws. The largest State program is assistance to local
public school  districts.  In 1988, an initiative  (Proposition  98) was enacted
which  (subject to suspension by a two-thirds  vote of the  Legislature  and the
Governor)  guarantees local school districts and community  college  districts a
minimum share of State General Fund revenues (currently 35%).

         Since the start of 1990-91  Fiscal  Year,  the State has faced  adverse
economic,  fiscal,  and budget  conditions.  The  economic  recession  seriously
affected State tax revenues.  It also caused  increased  expenditures for health
and welfare  programs.  The State is also facing a  structural  imbalance in its
budget with the largest  programs  supported  by the  General  Fund  (education,
health,  welfare and corrections)  growing at rates higher than the growth rates
for the principal  revenue  sources of the General Fund. As a result,  the State
entered a period of budget imbalance,  with expenditures  exceeding revenues for
four of the five fiscal years ending in 1991-92;  revenues and expenditures were
about equal in 1992-93. The General Fund had an operating surplus in 1993-94. By
June 30, 1994, the State's General Fund had an accumulated  deficit, on a budget
basis, of approximately $1.8 billion.

   
         CASH FLOW REQUIREMENTS.  Because of the budget deficit accumulated over
the past  several  years,  the  payment of certain  unbudgeted  expenditures  to
schools to maintain constant  per-pupil aid levels, and a reduction of the level
of  available  internal   borrowing,   the  State's  cash  resources  have  been
significantly  depleted.  This has  required  the  State to rely on a series  of
external  borrowings  for the past  several  years to pay its  normal  expenses,
including  repayment of previous cash flow borrowings.  Since June 1992, some of
these  borrowings have gone past the end of the fiscal year. In February,  1994,
the State borrowed $3.2 billion,  maturing by December, 1994. In July, 1994, the
State  borrowed a total of $7.0 billion to meet its cash flow  requirements  for
the 1994-95  fiscal  year,  and to fund a part of its  deficit  into the 1995-96
fiscal year. A total of $4.0 billion of this borrowing  matures in April,  1996.
The State will  continue to have to rely on external  borrowing to meet its cash
needs for the foreseeable future.
    

         RECENT BUDGETS. The State failed to enact its 1992-93 budget by July 1,
1992.  Although  the State had no legal  authority  to pay many of its  vendors,
certain  obligations  (such  as debt  service,  school  apportionments,  welfare
payments,  and employee  salaries) were payable because of continuing or special
appropriations,  or court orders.  However,  the State  Controller  did not have
enough cash to pay, as they came due, all of these ongoing obligations,  as well
as valid obligations incurred in the prior fiscal year.

         Starting  on July  1,  1992,  the  Controller  was  required  to  issue
"registered  warrants"  in lieu of  normal  warrants  backed by cash to pay many
State obligations.  Available cash was used to pay constitutionally mandated and
priority  obligations.  Between  July 1 and  September 3, 1992,  the  Controller
issued an aggregate of approximately $3.8 billion of registered  warrants all of
which were called for redemption by September 4, 1992 following enactment of the
1992-93 Budget Act and issuance by the State of short-term notes.

         The  1992-93  Budget  Act,  when  finally  adopted,  was  projected  to
eliminate the State's accumulated deficit, with additional  expenditure cuts and
a $1.3 billion transfer of State education funding costs to local governments by
shifting  local property taxes to school  districts.  However,  as the recession
continued  longer and deeper than  expected,  revenues once again were far below
projections,  and only reached a level just equal to the amount of expenditures.
Thus,  the State  continued to carry its $2.8 billion budget deficit at June 30,
1993.

         The  1993-94  Budget  Act  represented  a  third  consecutive  year  of
difficult  budget  choices.  As in the prior  year,  the budget  cccontained  no
general  state tax  increases,  and  relied  principally  on  expenditure  cuts,
particularly for health and welfare and higher education,  a two-year suspension
of the renters' tax credit, some one-time and accounting adjustments, and -- the
largest  component -- an additional $2.6 billion transfer of property taxes from
local  government,  particularly  counties,  to school districts to reduce State
education funding requirements.  A temporary state sales tax scheduled to expire
on June 30, 1993 was extended  for six months,  and  dedicated to support  local
government safety costs.

         A major  feature of the budget was a  two-year  plan to  eliminate  the
accumulated  deficit  by  borrowing  into  the  1994-95  fiscal  year.  With the
recession  still  continuing  longer than  expected,  the General  Fund had $800
million less revenue and $800 million higher  expenditures  than budgeted.  As a
result, revenues only exceeded expenditures by about $500 million. However, this
was the first  operating  surplus  in four  years and  reduced  the  accumulated
deficit to $2.0 billion at June 30, 1994 (after taking  account of certain other
accounting reserves).

         CURRENT BUDGET.  The 1994-95 Budget Act was passed on July 8, 1994, and
provides for an estimated  $41.9  billion of General  Fund  revenues,  and $40.9
billion of expenditures. The budget assumed receipt of about $750 million of new
federal assistance for the costs of incarceration, education, health and welfare
related to undocumented immigrants. Other major components of the budget include
further  reductions  in health and welfare  costs and  miscellaneous  government
costs, some additional  transfers of funds from local government,  and a plan to
defer retirement of $1 billion of the accumulated  budget deficit to the 1995-96
fiscal year. The federal government has apparently  budgeted only $33 million of
the expected  immigration aid. However,  this shortfall is expected to be almost
fully  offset by higher  than  projected  revenues,  and  lower  than  projected
caseload growth, as the economy improves.

         As noted above under "Cash Flow  Requirements,"  the State  issued $7.0
billion  of  short-term  debt in July,  1994 to meet its cash flow  needs and to
finance the deferral of part of the  accumulated  budget  deficit to the 1995-96
fiscal year.  In order to assure  repayment of the $4 billion,  22-month part of
this borrowing, the State enacted legislation (the "Trigger Law") which can lead
to automatic,  across-the-board  cuts in General Fund expenditures in either the
1994-95 or 1995-96 fiscal years if cash flow  projections  made at certain times
during those years show  deterioration  from the  projections  made in July 1994
when the borrowings  were made. On November 15, 1994, the State  Controller,  as
part of the Trigger Law,  reported that the cash position of the General Fund on
June 30, 1995 would be about $580 million better than earlier  projected,  so no
automatic budget adjustments were required in 1994-95.  The Controller's  report
showed  that  loss of  federal  funds  was  offset  by  higher  revenues,  lower
expenditures, and certain other increases in cash resources.

         The proposed  Governor's  Budget for the 1995-96  fiscal year  projects
General Fund revenues of $42.5 billion and  expenditures  of $41.7 billion.  The
Governor's  Budget  projects that all the  accumulated  budget  deficits will be
repaid by June 30, 1996,  with a small balance ($92 million) in the Special Fund
for Economic  Uncertainties,  the budget  reserve.  The proposed  budget assumes
receipt of about $830 million of new federal aid for undocumented aliens' costs,
and also  assumes  success in certain  ongoing  litigation  concerning  previous
budget  actions.  The  Governor  has  proposed a 15% cut in personal  income and
corporate taxes, to be phased in over three years starting in 1996.

         The State's  financial  difficulties for the current and upcoming years
will  result  in  continued   pressure   upon  almost  all  local   governments,
particularly  school  districts and counties which depend on State aid.  Despite
efforts in recent years to increase taxes and reduce governmental  expenditures,
there  can be no  assurance  that the  State  will not face  budget  gaps in the
future.

   
         ORANGE  COUNTY.  On December 6, 1994,  Orange County,  California  (the
"County"),  together with its pooled  investment  funds (the "Pools")  filed for
protection  under Chapter 9 of the federal  Bankruptcy  Code, after reports that
the Pools had suffered  significant market losses in their investments causing a
liquidity  crisis  for the Pools  and the  County.  More  than 180 other  public
entities,  most but not all located in the County,  were also  depositors in the
Pools.  As of mid-January,  1995, the County  estimated the Pools' loss at about
$1.7 billion, or 22% of its initial deposits of around $7.5 billion. Many of the
entities that kept moneys in the Pools,  including  the County,  are facing cash
flow difficulties because of the bankruptcy filing and may be required to reduce
programs or capital  projects.  The County and some of these  entities have, and
others may in the future,  default in payment of their obligations.  Moody's and
Standard & Poor's have suspended,  reduced to below investment grade levels,  or
placed on "Credit  Watch"  various  securities  of the  County and the  entities
participating in the Pool.
    

         The State of California has no existing  obligation with respect to any
obligations  or  securities  of the  County  or any of the  other  participating
entities. However, the State may be obligated to intervene to ensure that school
districts   have   sufficient   funds  to  operate,   or  to  maintain   certain
countyadministered state programs.

BOND RATINGS

         State general  obligation bonds are currently rated "A1" by Moody's and
"A" by S&P. Both of these ratings were reduced from "AAA" levels which the State
held  until late  1991.  There can be no  assurance  that such  ratings  will be
maintained  in the  future.  It should  be noted  that the  creditworthiness  of
obligations  issued  by  local  California  issuers  may  be  unrelated  to  the
creditworthiness  of  obligations  issued by the State of  California,  and that
there  is no  obligation  on the  part  of the  State  to make  payment  on such
obligations in the event of default.

LEGAL PROCEEDING.

         The State is involved in certain  legal  proceedings  (described in the
State's recent  financial  statements)  that, if decided against the State,  may
require the State to make significant  future  expenditures or may substantially
impair revenues.

OBLIGATIONS OF OTHER ISSUERS

         OTHER ISSUERS OF CALIFORNIA MUNICIPAL  OBLIGATIONS.  There are a number
of state  agencies,  instrumentalities  and political  subdivisions of the State
that  issue  Municipal  Obligations,  some  of  which  may  be  conduit  revenue
obligations  payable from payments from private  borrowers.  These  entities are
subject to various economic risks and  uncertainties,  and the credit quality of
the securities  issued by them may vary  considerably from the credit quality of
obligations backed by the full faith and credit of the State.

         STATE  ASSISTANCE.  Property tax revenues received by local governments
declined more than 50% following  passage of Proposition 13.  Subsequently,  the
California Legislature enacted measures to provide for the redistribution of the
State's  General Fund surplus to local  agencies,  the  reallocation  of certain
State  revenues to local  agencies and the  assumption  of certain  governmental
functions by the State to assist  municipal  issuers to raise revenues.  Through
1990-91, local assistance (including public schools) accounted for around 75% of
General  Fund  spending.  To  reduce  State  General  Fund  support  for  school
districts,  the 1992-93 and 1993-94  Budget  Acts caused  local  governments  to
transfer a total of $3.9 billion of property  tax revenues to school  districts,
representing  loss of all the  post-Proposition  13  "bailout"  aid. The largest
share of these  transfers  came from  counties,  and the  balance  from  cities,
special districts and redevelopment  agencies.  In order to make up part of this
shortfall, the Legislature proposed, and voters approved, dedicating 0.5% of the
sales tax to counties and cities for public safety  purposes.  In addition,  the
Legislature has changed laws to relieve local  governments of certain  mandates,
allowing them to reduce costs.

         To the extent the State  should be  constrained  by its  Article  XIIIB
appropriations  limit,  or its obligation to conform to Proposition 98, or other
fiscal  considerations,  the  absolute  level,  or the rate of growth,  of State
assistance to local governments may continue to be reduced.  Any such reductions
in State aid could compound the serious fiscal constraints  already  experienced
by many local  governments,  particularly  counties.  At least one rural  county
(Butte) publicly announced that it might enter bankruptcy  proceedings in August
1990,  although such plans were put off after the Governor approved  legislation
to provide  additional funds for the county.  Other counties have also indicated
that their budgetary  condition is extremely  grave. The Richmond Unified School
District  (Contra Cost County) entered  bankruptcy  proceedings in May 1991, but
the proceedings have been dismissed.

   
     ASSESSMENT  BONDS.  California  municipal  obligations  that are assessment
bonds may be adversely  affected by a general decline in real estate values or a
slowdown in real estate sales activity. In many cases, such bonds are secured by
land  that  is  undeveloped  at the  time of  issuance,  but  anticipated  to be
developed  within a few years after issuance.  In the event of such reduction or
slowdown,  such development may not occur or may be delayed,  thereby increasing
the risk of a default on the bonds.  Because  the special  assessments  or taxes
securing  these  bonds  are not the  personal  liability  of the  owners  of the
property assessed,  the lien on the property is the only security for the bonds.
Moreover,  in most  cases the  issuer  of these  bonds is not  required  to make
payments on the bonds in the event of  delinquency in the payment of assessments
or taxes,  except from amounts,  if any, in a reserve fund  established  for the
bonds.
    

         CALIFORNIA  LONG-TERM LEASE OBLIGATIONS.  Certain California  long-term
lease  obligations,  though  typically  payable  from  the  general  fund of the
municipality,  are subject to "abatement" in the event the facility being leased
use and occupancy by the municipality during the term of the lease. Abatement is
not a default,  and there may be no  remedies  available  to the  holders of the
certificates  evidencing the lease obligation in the event abatement occurs. The
most common  cases of  abatement  are failure to  complete  construction  of the
facility  before the end of the period  during  which lease  payments  have been
capitalized  and  uninsured  casualty  losses  to  the  facility  (e.g.  due  to
earthquake).  In the event abatement occurs with respect to a lease  obligation,
lease  payments may be  interrupted  (if all  available  insurance  proceeds and
reserves are exhausted) and the certificates may not be paid when due.

         Several years ago the Richmond Unified School District (the "District")
entered into a lease  transaction  in which certain  existing  properties of the
District  were sold and leased back in order to obtain funds to cover  operating
deficits.  Following a fiscal crisis in which the District's finances were taken
over by a State  receiver  (including  a brief  period  under  bankruptcy  court
protection),  the  District  failed  to make  rental  payments  on  this  lease,
resulting  in a lawsuit by the  Trustee  for the  Certificate  of  Participation
holders,  in which the  State  was a named  defendant  (on the  grounds  that it
controlled the  District's  finances).  One of the defenses  raised in answer to
this lawsuit was the invalidity of the District's  lease. The trial court upheld
the  validity of the lease,  and the case has  subsequently  been  settled.  Any
judgment in a similar case  against the  position  taken by the Trustee may have
adverse  implications  for  lease  transactions  of a  similar  nature  by other
California entities.

OTHER CONSIDERATIONS

         The  repayment of  industrial  development  securities  secured by real
property  may be affected by  California  laws  limiting  foreclosure  rights of
creditors.  Securities  backed  by  health  care and  hospital  revenues  may be
affected by changes in State regulations governing cost reimbursements to health
care providers under Medi-Cal (the State's  Medicaid  program),  including risks
related to the policy of awarding exclusive contracts to certain hospitals.

         Limitations on ad valorem property taxes may  particularly  affect "tax
allocation" bonds issued by California  redevelopment  agencies.  Such bonds are
secured solely by the increase in assessed valuation of a redevelopment  project
area  after the start of  redevelopment  activity.  In the event  that  assessed
values in the  redevelopment  project  decline  (e.g.  because of major  natural
disaster such as an earthquake),  the tax increment  revenue may be insufficient
to make  principal  and interest  payments on these bonds.  Both Moody's and S&P
suspended  ratings on  California  tax  allocation  bonds after the enactment of
Articles XIIIA and XIIIB, and only resumed such ratings on a selective basis.

         Proposition  87, approved by California  voters in 1988,  requires that
all revenues  produced by a tax rate  increase go directly to the taxing  entity
that  increased  such  tax  rate  to  repay  that  entity's  general  obligation
indebtedness.  As a result,  redevelopment  agencies  (which  typically  are the
issuers of tax  allocation  securities)  no longer  receive an  increase  in tax
increment  when taxes on  property in the project  area are  increased  to repay
voter-approved bonded indebtedness.

   
         The effect of these various  constitutional  and statutory changes upon
the ability of  California  municipal  securities  issuers to pay  interest  and
principal on their  obligations  remains  unclear.  Furthermore,  other measures
affecting  the taxing or  spending  authority  of  California  or its  political
subdivisions  may be approved or enacted in the future.  Legislation has been or
may be introduced  that would modify  existing  taxes or other  revenue  raising
measures or that either would further limit or,  alternatively,  would  increase
the  abilities  of state and local  governments  to impose new taxes or increase
existing taxes. It is not presently  possible to predict the extent to which any
such legislation will be enacted.  Nor is it presently possible to determine the
impact of any such legislation on California Municipal  Obligations in which the
Fund may invest,  future  allocations of state revenues to local  governments or
the abilities of state or local governments to pay the interest on, or repay the
principal of, such California municipal obligations.
    

         Substantially  all of  California is within an active  geologic  region
subject to major  seismic  activity.  Northern  California  in 1989 and Southern
California in 1994 experienced major earthquakes  causing billions of dollars in
damages.  The federal government  provided more than $13 billion in aid for both
earthquakes,  and  neither  event is  expected  to have any  long-term  negative
economic impact.  Any security in the California  Insured Fund could be affected
by an interruption of revenues because of damaged facilities,  or, consequently,
income tax deductions for casualty losses or property tax assessment reductions.
Compensatory  financial  assistance could be constrained by the inability of (i)
an issuer to have obtained  earthquake  insurance  coverage at reasonable rates;
(ii) an  insurer  to  perform  on its  contracts  of  insurance  in the event of
widespread  losses;  or (iii) the federal or State  governments  to  appropriate
sufficient funds within their respective budget limitations.


                    KEYSTONE AMERICA MISSOURI TAX FREE FUND

GENERAL

         Missouri's economy includes manufacturing,  commerce,  trade, services,
agriculture,  tourism and mining. The State's economy is diversified and closely
resembles that of the nation's although growth prospects are less favorable than
in the past. It is the nation's  fifteenth  largest state.  The State employment
sectors, services, trade and manufacturing, also account for the primary sources
of national  employment.  Recent growth in the manufacturing sector has outpaced
the nation as a whole.  Labor force growth has remained  steady,  totaling  2.65
million  in 1993,  up from 2.3  million  in 1980.  Through  the 1980's and early
1990's the State's  unemployment  rate essentially  mirrored that of the nation;
however,  adverse  changes in military  appropriations,  which play an important
role in the State's  economy,  could  contribute  to a  significant  increase in
unemployment.  In 1991,  according to the Bureau of Labor Statistics,  the State
ranked fifteenth among the states in unadjusted  nonagricultural  employment and
estimated  the November 1992 adjusted  unemployment  rate to be 4.9%,  below the
national  rate of 7.2%.  In December  1994,  the State's  unemployment  rate was
estimated  to be 4.3% as against the  national  rate of 5.1%.  In recent  years,
Missouri's  wealth  indicators  have grown at a slower rate than national levels
and in 1993 the State's per capita  personal income was  approximately  94.1% of
the average for the nation as a whole.

   
         Missouri displayed strong fiscal performance during most of the 1980's.
However,  Missouri has recently experienced difficulties in balancing its budget
as a result of increased  expenses  and  declining  sources of  revenues.  Other
factors  contributing to Missouri's weak fiscal position relate to the reduction
of large  manufacturing  companies,  including  those in aerospace  and the auto
industry.  The Missouri  portions of the St. Louis and Kansas City  metropolitan
areas together contain over 50% of Missouri's population.  Economic reversals in
either of these two areas  would  have a major  impact on the  overall  economic
condition  of the State of Missouri.  Additionally,  the State of Missouri has a
significant  agricultural sector, which may  experience  problems  comparable to
those which are occurring in other states.  To the extent that any such problems
intensify,  there could  possibly be an adverse  impact on the overall  economic
condition of the State.
    

         Currently,  general  obligations of Missouri are rated "AAA," "Aaa" and
"AAA," by S&P, Moody's and Fitch,  respectively.  There can be no assurance that
the economic  conditions  on which these ratings are based will continue or that
particular  bond issues may not be  adversely  affected by changes in  economic,
political or other conditions.

REVENUES AND LIMITATIONS THEREON

         Approximately 55% of total state revenues are derived from state taxes.
The  major  components  are the  sales and use tax,  individual  income  tax and
corporate  income  tax.  For the  fiscal  year  ended  June  30,  1994,  revenue
collections  were $4,963.6  million,  representing an increase of  approximately
10.1% percent over revenue collections from the previous fiscal year.

         Article  X,  Sections  16-24 of the  Constitution  of  Missouri  (often
referred to as the "Hancock  Amendment")  imposes  limitations  on the amount of
State  taxes that may be  collected  by the State of  Missouri as well as on the
amount of local taxes,  licenses and fees  (including  taxes,  licenses and fees
used to meet debt service  commitments on debt  obligations) that may be imposed
by local governmental units (such as cities,  counties,  school districts,  fire
protection  districts and other similar  bodies) in the State of Missouri in any
fiscal year. The limit is tied to total State revenues for the fiscal year ended
June 30,  1981,  as defined in the  Hancock  Amendment,  adjusted  annually,  in
accordance with the formula set forth in the Amendment,  which adjusts the limit
based on increases  in the average  personal  income of Missouri for  designated
periods.  The details of the  Amendment are too complex and  clarification  from
subsequent legislation and further judicial decisions may be necessary. If total
State  revenues  exceed the State  revenue  limit by more than one percent,  the
State is required to refund the excess.  The revenue  limit can only be exceeded
if the  General  Assembly  approves,  by a  two-thirds  vote of each  House,  an
emergency declared by the Governor.  The revenue limit can also be exceeded by a
constitutional  amendment authorizing new or increased taxes or revenues adopted
by the voters of the State of Missouri.  The revenue limit has not been exceeded
in any past year and current projections  indicate the revenue limit will not be
exceeded in fiscal year 1995.

         The  Hancock   Amendment  further  provides  that  the  State  financed
proportion of the costs of any existing activity or service required of counties
and  other  political  subdivisions  cannot  be  reduced.  In  addition,   State
government  expenses  cannot  exceed the sum of a State's  revenues  (limited as
described above) plus Federal funds and any surplus from a previous year.

         The Missouri  Constitution also limits new taxes, licenses and fees and
increases in taxes,  licenses and fees by local  governmental units in Missouri.
It prohibits  counties and other political  subdivisions  (essentially all local
governmental units) from levying new taxes,  licenses and fees or increasing the
current  levy of an existing  tax,  license or fee  "without the approval of the
required  majority of the  qualified  voters of that  county or other  political
subdivision voting thereon." The Missouri Supreme Court has ruled that the voter
approval requirement on new or increased taxes, licenses and fees does not apply
to traditional user fees such as those charged to customers of municipally owned
utilities.

         If the required  majority of qualified  electors voting on the issuance
of debt  obligations  approves the issuance of the debt obligations and the levy
of taxes or  imposition  of licenses or fees  necessary  to meet the payments of
principal and interest on such debt obligations,  taxes, licenses or fees may be
imposed  or  existing  taxes,  licenses  or fees may be  increased  to cover the
principal and interest on such debt  obligations  without  violating the Hancock
Amendment.  Missouri  constitutional  or  statutory  provisions  other  than the
Hancock  Amendment may require  greater than majority  voter  approval for valid
issuance of certain debt obligations.

         Taxes  may  also  be  increased   by  counties   and  other   political
subdivisions  (but not by the State),  without regard to the  limitations of the
Hancock  Amendment,  for the purpose of paying  principal  and  interest on such
bonds,  other evidences of indebtedness,  and obligations issued in anticipation
of the issuance of bonds, if such bonds and other obligations were authorized to
be issued prior to the adoption of the Hancock Amendment.

         When a local government unit's tax base with respect to certain fees or
taxes is  broadened,  the Hancock  Amendment  requires the tax levy or fee to be
reduced "to yield the same  estimated  gross  revenue as on the prior  base." It
also effectively limits any percentage  increase in property tax revenues to the
percentage  increase  in  the  general  price  level  (plus  the  value  of  new
construction and  improvements),  even if the assessed  valuation of property in
the  local  governmental  unit,  excluding  the  value of new  construction  and
improvements,  increases at a rate  exceeding  the increase in the general price
level.

         To the extent that the payment of general  obligation  bonds  issued by
the State of Missouri or a unit of local  government  in the Missouri  State Tax
Free Fund's  portfolio is dependent on revenues  from the levy of taxes and such
obligations have been issued  subsequent to the date of the Hancock  Amendment's
adoption  (November 4, 1980), the ability of the State or the appropriate  local
unit to levy  sufficient  taxes to pay the debt  service  on such  bonds  may be
affected,  unless there has been specific voter approval of the issuance of such
bonds  and the levy of such  taxes as are  necessary  to pay the  principal  and
interest on such bonds and obligations.

         Debt  obligations  issued by certain state  issuers are payable  either
solely or primarily from the rentals,  incomes and revenues of specific projects
financed with the proceeds of the debt  obligations and are not supported by the
taxing powers of the State or of the issuer of the bonds. The Hancock  Amendment
may most strongly  affect such State revenue bonds,  since they are dependent in
whole or in part on appropriations of the General Assembly to provide sufficient
revenues to pay principal  and  interest.  Unless such bonds are approved by the
voters of Missouri, under the Hancock Amendment, taxes cannot be raised to cover
the State  appropriations  necessary to provide  revenues to pay  principal  and
interest on the bonds.  Consequently,  payment of principal and interest on such
state revenue bonds or other obligations,  relating to specific projects and not
supported by the taxing  power of the State of Missouri,  may not be made or may
not be made in a timely  fashion  because of (i) the  inability  of the  General
Assembly  to  appropriate   sufficient  funds  for  the  payment  of  such  debt
obligations  (or to make up shortfalls  therein) due to the limitations on State
taxes and expenditures  imposed by the Hancock Amendment;  (ii) the inability of
the issuer to  generate  sufficient  income or revenue  from the project to make
such payment; or (iii) a combination of the above.

         As described  above,  general  obligations  bonds and revenue  bonds of
local governmental units, including counties, cities and similar municipalities,
sewer  districts,  school  districts  and  other  similar  issuers,  may also be
affected by the tax,  license  and fee  limitations  of the  Hancock  Amendment.
Unless the required voter approval of such debt  obligations  and the imposition
of taxes to pay them is obtained prior to their issuance,  the Hancock Amendment
imposes  limitations on the imposition of new taxes and the increase of existing
taxes which may be necessary to pay principal and interest on general obligation
bonds of local issuers.  The limitations  contained in the Hancock Amendment may
also affect the payment of principal and interest on bonds and other obligations
issued by local  governmental units and supported by the revenues generated from
user fees,  licenses  or other fees and  charges,  unless  the  requisite  voter
approval of the issuance of such bonds or other obligations, and the approval of
the  assessment  of such fees or other  charges as may be  necessary  to pay the
principal  and interest on such bonds or other  obligations,  has been  obtained
prior to their issuance.

         Debt  obligations  of  certain  other  state  and  local  agencies  and
authorities  are not,  by the terms of their  respective  authorizing  statutes,
obligations of the State or any political subdivision, public instrumentality or
authority,  county,  municipality  or other  state or local unit of  government.
Illustrative of such issuers are the Missouri  Housing  Development  Commission,
the State Environmental  Improvement and Energy Resources Authority,  the Health
and  Educational  Facilities  Authority of the State of  Missouri,  the Missouri
Higher Education Loan Authority,  the Industrial  Development Board of the State
of Missouri,  the Missouri Agricultural and Small Business Development Authority
and  other  similar  bodies  organized  on a local  level  under  similar  state
authorizing   statutes  such  as  the  various  local   industrial   development
authorities,  planned  industrial  expansion  authorities and land clearance for
redevelopment authorities. The debt obligations of such issuers are payable only
from the revenues generated by the project or program financed from the proceeds
of  the  debt  obligations  they  issue,  and  the  Hancock   Amendment  has  no
application.

INDUSTRY AND EMPLOYMENT

         While Missouri has a diverse  economy with a  distribution  of earnings
and  employment   among   manufacturing,   trade  and  service  sectors  closely
approximating the average national distribution, the national economic recession
of the early 1980's had a  disproportionately  adverse  impact on the economy of
Missouri.  During  the  1970's,  Missouri  characteristically  had a pattern  of
unemployment levels well below the national averages. However, since the 1980 to
1983 recession periods Missouri  unemployment  levels generally  approximated or
slightly  exceeded  the  national  average.  A  return  to  a  pattern  of  high
unemployment  could adversely affect the Missouri debt  obligations  acquired by
the Missouri Fund and, consequently, the value of the shares of the Fund.

         The  Missouri  portions of the St.  Louis and Kansas City  metropolitan
areas  contain  approximately  1,939,500  and 975,241  residents,  respectively,
constituting  over  fifty  percent  of  Missouri's  1994  population  census  of
approximately  5,278,000.  St.  Louis  is an  important  site  for  banking  and
manufacturing  activity,  as well as a distribution and  transportation  center,
with eight Fortune 500 industrial companies (as well as other major educational,
financial,   insurance,  retail,  wholesale  and  transportation  companies  and
institutions)  headquartered  there.  Kansas City is a major agribusiness center
and an important center for finance and industry.  Economic  reversals in either
of these two areas would have a major impact on the overall  economic  condition
of the State of Missouri.  Additionally, the State of Missouri has a significant
agricultural  sector which is experiencing  farm-related  problems comparable to
those which are  occurring in other  states.  To the extent that these  problems
were to  intensify,  there could  possibly  be an adverse  impact on the overall
economic condition of the State of Missouri.

         Defense related business plays an important role in Missouri's economy.
In addition to the large  number of civilians  employed at the various  military
installations and training bases in the State,  aircraft and related  businesses
in Missouri are the recipients of  substantial  annual dollar volumes of defense
contract awards.  McDonnell Douglas Corporation is the State's largest employer,
currently  employing  approximately  24,000 employees in Missouri.  In the past,
Missouri  has ranked in the top six states in total  military  contract  awards,
however due to recent  large cuts in the  defense  budget,  Missouri  dropped to
tenth in 1992 in the dollar  volume of defense  contracts.  This compares to its
population  ranking as the nation's  fifteenth largest state.  Recent changes in
the levels of military  appropriations  and the cancellation of the A-12 program
has affected  McDonnell Douglas  Corporation in Missouri and over the last three
years it has reduced its Missouri work force by approximately  30%. There can be
no  assurances  that  there will be  further  changes in the levels of  military
appropriations,   and,   to  the  extent  that   further   changes  in  military
appropriations  are enacted by the United  States  Congress,  Missouri  could be
disproportionately affected.

OTHER FACTORS

         Desegregation lawsuits in St. Louis and Kansas City, and a U.S. Supreme
Court decision continue to require  significant  levels of state funding and are
sources of uncertainty.  Litigation  continues on many issues,  court orders are
unpredictable,  and school district  spending  patterns have proven difficult to
predict.  The State paid $277.5 million for  desegregation  costs in fiscal 1994
and the budget for fiscal 1995 provides  $358.9 million.  This expense  accounts
for close to 7% of total state General Revenue Fund spending.


<PAGE>
                                                                      APPENDIX B
                      CORPORATE AND MUNICIPAL BOND RATINGS

S&P CORPORATE AND MUNICIPAL BOND RATINGS

A.   MUNICIPAL NOTES

         An S&P note rating  reflects the  liquidity  concerns and market access
risks  unique to notes.  Notes due in three years or less will likely  receive a
note  rating.  Notes  maturing  beyond  three years will most  likely  receive a
long-term  debt  rating.   The  following  criteria  are  used  in  making  that
assessment:

         a.  Amortization  schedule (the larger the final  maturity  relative to
other maturities the more likely it will be treated as a note), and

         b. Source of payment (the more dependent the issue is on the market for
its refinancing, the more likely it will be treated as a note).

         Note ratings are as follows:

         1. SP-1 - Very  strong   or   strong   capacity  to pay  principal  and
            interest.   Those  issues  determined to possess overwhelming safety
            characteristics will be given a plus (+) designation.

         2. SP-2 - Satisfactory capacity to pay principal and interest.

         3. SP-3 - Speculative capacity to pay principal and interest.

B.   TAX EXEMPT DEMAND BONDS

         S&P assigns  "dual"  ratings to all long-term  debt issues that have as
part of their provisions a demand or double feature.

         The first rating addresses the likelihood of repayment of principal and
interest as due, and the second rating  addresses only the demand  feature.  The
long-term  debt  rating  symbols  are used for  bonds to  denote  the  long-term
maturity  and the  commercial  paper  rating  symbols are used to denote the put
option (for example,  "AAA/A-1+"). For the newer "demand notes," S&P note rating
symbols,  combined with the  commercial  paper  symbols,  are used (for example,
"SP-1+/A-1+" ).

C.   CORPORATE AND MUNICIPAL BOND RATINGS

         An S&P  corporate or municipal  bond rating is a current  assessment of
the  creditworthiness  of an obligor,  including obligors outside the U.S., with
respect to a specific  obligation.  This assessment may take into  consideration
obligors such as guarantors, insurers or lessees. Ratings of foreign obligors do
not take into account currency exchange and related  uncertainties.  The ratings
are based on current information furnished by the issuer or obtained by S&P from
other sources it considers reliable.

         The  ratings  are  based,   in  varying   degrees,   on  the  following
considerations:

         a. Likelihood of default and capacity and willingness of the obligor as
to the timely payment of interest and repayment of principal in accordance  with
the terms of the obligation;

         b. Nature of and provisions of the obligation; and

         c.  Protection  afforded by and relative  position of the obligation in
the event of bankruptcy  reorganization  or other  arrangement under the laws of
bankruptcy and other laws affecting creditors' rights.

         PLUS (+) OR MINUS (-): To provide more detailed  indications  of credit
quality, ratings from "AA" to "BBB" may be modified by the addition of a plus or
minus sign to show relative standing within the major rating categories.

         A  provisional  rating  is  sometimes  used  by  S&P.  It  assumes  the
successful  completion of the project being financed by the debt being rated and
indicates  that  payment of debt  service  requirements  is largely or  entirely
dependent upon the successful and timely completion of the project. This rating,
however,  while  addressing  credit  quality  subsequent  to  completion  of the
project,  makes no comment  on the  likelihood  of, or the risk of default  upon
failure of, such completion.

C.   BOND RATINGS ARE AS FOLLOWS:

         a.  AAA - Debt  rated  AAA  has the  highest  rating  assigned  by S&P.
Capacity to pay interest and repay principal is extremely strong.

         b. AA - Debt rated AA has a very strong  capacity to pay  interest  and
repay principal and differs from the higher rated issues only in small degree.

         3. A - Debt rated A has a strong  capacity  to pay  interest  and repay
principal  although it is somewhat more  susceptible  to the adverse  effects of
changes in  circumstances  and  economic  conditions  than debt in higher  rated
categories.

         4. BBB - Debt rated BBB is regarded  as having an adequate  capacity to
pay  interest  and  repay  principal.  Whereas  it  normally  exhibits  adequate
protection parameters, adverse economic conditions or changing circumstances are
more likely to lead to a weakened  capacity to pay interest and repay  principal
for debt in this category than in higher rated categories.

         5. BB, B, CCC, CC AND C - Debt rated BB, B, CCC, CC AND C is  regarded,
on  balance,  as  predominantly  speculative  with  respect to  capacity  to pay
interest and repay principal in accordance with the terms of the obligation.  BB
indicates  the  lowest  degree  of  speculation  and C  the  highest  degree  of
speculation.  While  such debt will  likely  have some  quality  and  protective
characteristics,  these are  outweighed  by large  uncertainties  or major  risk
exposures to adverse conditions.

D.   MOODY'S CORPORATE AND MUNICIPAL BOND RATINGS

         Moody's ratings are as follows:

         1. Aaa - Bonds that are rated Aaa are judged to be of the best quality.
They carry the smallest degree of investment risk and are generally  referred to
as  "gilt-edge."   Interest   payments  are  protected  by  a  large  or  by  an
exceptionally   stable  margin  and  principal  is  secure.  While  the  various
protective  elements are likely to change, such changes as can be visualized are
most unlikely to impair the fundamentally strong position of such issues.

         2. Aa - Bonds that are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known as
high grade bonds.  They are rated lower than the best bonds  because  margins of
protection may not be as large as in Aaa securities or fluctuation of protective
elements  may be of greater  amplitude  or there may be other  elements  present
which make the long term risks appear somewhat larger than in AAA securities.

         3. A -  Bonds  that  are  rated A  possess  many  favorable  investment
attributes and are to be considered as upper medium grade  obligations.  Factors
giving  security to principal and interest are considered  adequate but elements
may be present  that  suggest a  susceptibility  to  impairment  sometime in the
future.

         4. Baa - Bonds  that are  rated  Baa are  considered  as  medium  grade
obligations,  i.e.,  they are  neither  highly  protected  nor  poorly  secured.
Interest  payments and principal  security  appear  adequate for the present but
certain  protective  elements  may  be  lacking  or  may  be  characteristically
unreliable over any great length of time. Such bonds lack outstanding investment
characteristics and in fact have speculative characteristics as well.

         5. Ba -  Bonds  that  are  rated  Ba are  judged  to  have  speculative
elements.  Their  future  cannot  be  considered  as  well  assured.  Often  the
protection of interest and  principal  payments may be very moderate and thereby
not well safeguarded during both good and bad times over the future. Uncertainty
of position characterizes bonds in this class.

         6. B - Bonds that are rated B  generally  lack  characteristics  of the
desirable  investment.  Assurance  of  interest  and  principal  payments  or of
maintenance  of other terms of the contract  over any long period of time may be
small.

         Moody's applies numerical modifiers,  1, 2 and 3 in each generic rating
classification  from Aa through Baa in its  corporate  bond rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating category;  the modifier 2 indicates a mid-range ranking; and the modifier
3  indicates  that  the  issue  ranks in the  lower  end of its  generic  rating
category.

         CON.  (---) - Municipal  bonds for which the security  depends upon the
completion  of  some  act  or  the  fulfillment  of  some  condition  are  rated
conditionally.  These  are bonds  secured  by (a)  earnings  of  projects  under
construction,  (b) earnings of projects unseasoned in operation experience,  (c)
rentals that begin when facilities are completed,  or (d) payments to which some
other limiting condition attaches.  Parenthetical rating denotes probable credit
stature upon completion of construction or elimination of basis of condition.

         Those  municipal  bonds in the Aa,  A,  and Baa  groups  which  Moody's
believes  possess the  strongest  investment  attributes  are  designated by the
symbols Aa 1, A 1, and Baa 1.

                            MONEY MARKET INSTRUMENTS

         Money market  securities are instruments  with remaining  maturities of
one year or less such as bank  certificates  of deposit,  bankers'  acceptances,
commercial paper (including  variable rate master demand notes), and obligations
issued or guaranteed by the U.S. government,  its agencies or instrumentalities,
some of which may be subject to repurchase agreements.

COMMERCIAL PAPER

         Commercial  paper will  consist of issues rated at the time of purchase
A-1, by Standard & Poor's  Corporation  (S&P),  or PRIME-1 by Moody's  Investors
Service, Inc., (Moody's) or F-1 by Fitch Investors Services, Inc. (Fitch's); or,
if not rated,  will be issued by companies that have an  outstanding  debt issue
rated at the time of purchase  Aaa, Aa or A by Moody's,  or AAA, AA or A by S&P,
or will be determined by Keystone to be of comparable quality.

A.  S&P RATINGS

         An  S&P  commercial  paper  rating  is  a  current  assessment  of  the
likelihood of timely payment of debt having an original maturity of no more than
365 days.  Ratings are graded  into four  categories,  ranging  from "A" for the
highest  quality  obligations  to "D" for the  lowest.  The top  category  is as
follows:

         1. A: Issues  assigned  this highest  rating are regarded as having the
greatest  capacity for timely  payment.  Issues in this category are  delineated
with the numbers 1, 2 and 3 to indicate the relative degree of safety.

         2. A-1: This designation  indicates that the degree of safety regarding
timely payment is either overwhelming or very strong. Those issues determined to
possess  overwhelming  safety  characteristics  are denoted with a plus (+) sign
designation.

B.   MOODY'S RATINGS

         The  term  "commercial  paper"  as used  by  Moody's  means  promissory
obligations  not having an original  maturity in excess of nine months.  Moody's
commercial  paper  ratings  are  opinions  of the  ability  of  issuers to repay
punctually  promissory  obligations not having an original maturity in excess of
nine months. Moody's employs the following designation,  judged to be investment
grade, to indicate the relative repayment capacity of rated issuers.

         1. The rating PRIME-1 is the highest  commercial  paper rating assigned
by Moody's.  Issuers  rated  PRIME-1 (or related  supporting  institutions)  are
deemed to have a  superior  capacity  for  repayment  of short  term  promissory
obligations. Repayment capacity of PRIME-1 issuers is normally evidenced by the
following characteristics:

         1) leading market positions in well-established industries;
         2) high rates of return on funds employed;
         3) conservative capitalization structures with moderate
            reliance on debt and ample asset protection;
         4) broad margins in earnings coverage of fixed financial
            charges and high internal cash generation; and
         5) well established access to a range of financial markets and
            assured sources of alternate liquidity.

         In assigning  ratings to issuers whose commercial paper obligations are
supported by the credit of another  entity or entities,  Moody's  evaluates  the
financial strength of the affiliated  corporations,  commercial banks, insurance
companies,  foreign governments or other entities, but only as one factor in the
total rating assessment.

CERTIFICATES OF DEPOSIT

         Certificates  of deposit are receipts  issued by a bank in exchange for
the  deposit  of funds.  The  issuer  agrees to pay the  amount  deposited  plus
interest to the bearer of the receipt on the date specified on the  certificate.
The certificate usually can be traded in the secondary market prior to maturity.

         Certificates  of deposit  will be  limited  to U.S.  dollar-denominated
certificates of U.S. banks or of savings and loan associations,  including their
branches abroad, and of U.S. branches of foreign banks, which are members of the
Federal Reserve System or the Federal Deposit Insurance Corporation, and have at
least $1 billion in  deposits  as of the date of their most  recently  published
financial statements.

         The Funds will not acquire time deposits or  obligations  issued by the
International  Bank for  Reconstruction  and Development,  the "World Bank", the
Asian Development Bank or the Inter-American Development Bank. Additionally, the
Funds do not  currently  intend to purchase  foreign  securities  (except to the
extent that  certificates  of deposit of foreign  branches of U.S.  banks may be
deemed  foreign  securities)  or  purchase  certificates  of  deposit,  bankers'
acceptances or other similar obligations issued by foreign banks.

BANKERS' ACCEPTANCES

         Bankers'   acceptances   typically   arise   from   short-term   credit
arrangements designed to enable businesses to obtain funds to finance commercial
transactions.  Generally,  an  acceptance  is a time draft drawn on a bank by an
exporter or an importer to obtain a stated  amount of funds to pay for  specific
merchandise.  The  draft  is  then  "accepted"  by the  bank  that,  in  effect,
unconditionally  guarantees  to pay the  face  value  of the  instrument  on its
maturity  date.  The  acceptance  may then be held by the  accepting  bank as an
earning  asset or it may be sold in the  secondary  market at the going  rate of
discount for a specific maturity.  Although maturities for acceptances can be as
long as 270  days,  most  acceptances  have  maturities  of six  months or less.
Bankers'  acceptances  acquired  by a Fund  must  have  been  accepted  by  U.S.
commercial banks,  including foreign branches of U.S.  commercial banks,  having
total  deposits  at the time of  purchase  in excess of $1  billion  and must be
payable in U.S. dollars.

U.S. GOVERNMENT SECURITIES

         Securities  issued  or  guaranteed  by the U.S.  government  include  a
variety  of  Treasury  securities  that  differ  only in their  interest  rates,
maturities  and  dates of  issuance  and  securities  issued  by the  Government
National Mortgage  Association  ("GNMA").  Treasury bills have maturities of one
year or less.  Treasury  notes have  maturities of one to ten years and Treasury
bonds  generally  have  maturities  of  greater  than  ten  years at the date of
issuance. GNMA securities include GNMA mortgage pass-through certificates.  Such
securities are supported by the full faith and credit of the U.S.

         Securities  issued  or  guaranteed  by  U.S.   government  agencies  or
instrumentalities include securities issued or guaranteed by the Federal Housing
Administration,  Farmers Home  Administration,  Export-Import  Bank of the U.S.,
Small Business Administration, General Services Administration, Central Bank for
Cooperatives,  Federal  Home Loan  Banks,  Federal  Loan  Mortgage  Corporation,
Federal Intermediate Credit Banks, Federal Land Banks, Maritime  Administration,
The Tennessee  Valley  Authority,  District of Columbia Armory Board and Federal
National Mortgage Association.

         Some  obligations of U.S.  government  agencies and  instrumentalities,
such as securities of Federal Home Loan Banks, are supported by the right of the
issuer to borrow from the Treasury.  Others, such as bonds issued by the Federal
National Mortgage Association, a private corporation,  are supported only by the
credit of the  instrumentality.  Because the U.S. government is not obligated by
law to provide support to an instrumentality it sponsors,  a Fund will invest in
the securities issued by such an instrumentality  only when Keystone  determines
under  standards  established by the Board of Trustees that the credit risk with
respect  to  the  instrumentality  does  not  make  its  securities   unsuitable
investments. U.S. government securities do not include international agencies or
instrumentalities   in   which   the   U.S.   government,    its   agencies   or
instrumentalities participate, such as the World Bank, Asian Development Bank or
the  Inter-American  Development  Bank, or issues insured by the Federal Deposit
Insurance Corporation.

MUNICIPAL LEASE OBLIGATIONS

         Municipal lease obligations purchased primarily through Certificates of
Participation  ("CPOs") are used by state and local  governments  to finance the
purchase of property,  and function much like installment purchase  obligations.
The payments made by the municipality under the lease are used to repay interest
and  principal on the bonds issued to purchase  the  property.  Once these lease
payments are completed,  the municipality  gains ownership of the property for a
nominal sum. The lessor is, in effect,  a lender  secured by the property  being
leased. A feature that  distinguishes CPOs from municipal debt is that the lease
that is the subject of the  transaction  must  contain a  "nonappropriation"  or
"abatement" clause. A nonappropriation clause provides that provides that, while
the  municipality  will  use its  best  efforts  to  make  lease  payments,  the
municipality  may  terminate  the lease  without  penalty if the  municipality's
appropriating body does not allocate the necessary funds. Local administrations,
being faced with increasingly  tight budgets,  therefore have more discretion to
curtail  payments under COPs than they do to curtail  payments on  traditionally
funded  debt  obligations.   If  the  government  lessee  does  not  appropriate
sufficient  monies to make lease payments,  the lessor or its agent is typically
entitled to repossess the property.  In most cases,  however, the private sector
value of the  property  will be less than the amount the  government  lessee was
paying.

         Criteria  considered  by the rating  agencies and Keystone in assessing
the risk of  appropriation  include the issuing  municipality's  credit  rating,
evaluation of how essential the leased property is to the  municipality and term
of the lease  compared to the useful life of the leased  property.  The Board of
Trustees  reviews  the COPs held in each  Fund's  portfolio  to assure that they
constitute liquid  investments based on various factors reviewed by Keystone and
monitored  by the Board.  Such  factors  include (a) the credit  quality of such
securities  and the extent to which they are rated or, if  unrated,  comply with
existing  criteria  and  procedures  followed to ensure that they are of quality
comparable  to the ratings  required  for each Fund's  investment,  including an
assessment of the likelihood that the leases will not be cancelled; (b) the size
of the municipal  securities  market,  both in general and with respect to COPs;
and (c) the extent to which the type of COPs held by each Fund trade on the same
basis and with the same degree of dealer  participation as other municipal bonds
of comparable credit rating or quality.


               FUTURES CONTRACTS AND RELATED OPTIONS TRANSACTIONS

         The Funds intend to enter into financial  futures  contracts as a hedge
against  changes  in  prevailing  levels  of  interest  rates  to seek  relative
stability of principal and to establish more definitely the effective  return on
securities  held or  intended  to be  acquired  by a Fund or as a hedge  against
changes in the prices of securities  held by a Fund or to be acquired by a Fund.
A Fund's hedging may include sales of futures as an offset against the effect of
expected  increases  in interest  rates or  securities  prices and  purchases of
futures as an offset against the effect of expected declines in interest rates.

         For example,  when a Fund  anticipates a  significant  market or market
sector  advance,  it will  purchase a stock  index  futures  contract as a hedge
against  not  participating  in such  advance at a time when a Fund is not fully
invested.  The purchase of a futures  contract serves as a temporary  substitute
for the  purchase of  individual  securities  which may then be  purchased in an
orderly fashion. As such purchases are made, an equivalent amount of index based
futures contracts would be terminated by offsetting  sales. In contrast,  a Fund
would sell stock index  futures  contracts  in  anticipation  of or in a general
market or market sector  decline that may  adversely  affect the market value of
the Fund's  portfolio.  To the extent that the Fund's portfolio changes in value
in correlation with a given index,  the sale of futures  contracts on that index
would  substantially  reduce the risk to the  portfolio  of a market  decline or
change in  interest  rates,  and,  by doing so,  provide an  alternative  to the
liquidation  of the Fund's  securities  positions and the resulting  transaction
costs.

         The Funds intend to engage in options  transactions that are related to
financial  futures  contracts for hedging  purposes and in  connection  with the
hedging strategies described above.

         Although techniques other than sales and purchases of futures contracts
and related options  transactions could be used to reduce the Funds' exposure to
interest rate and/or market  fluctuations,  the Funds may be able to hedge their
exposure  more  effectively  and perhaps at a lower cost through  using  futures
contracts  and related  options  transactions.  While the Funds do not intend to
take delivery of the  instruments  underlying  futures  contracts they hold, the
Funds do not intend to engage in such futures contracts for speculation.

FUTURES CONTRACTS

         Futures  contracts are  transactions in the commodities  markets rather
than in the securities  markets. A futures contract creates an obligation by the
seller to deliver to the buyer the  commodity  specified  in the  contract  at a
specified  future time for a specified  price.  The futures  contract creates an
obligation  by the buyer to accept  delivery  from the  seller of the  commodity
specified at the specified future time for the specified  price. In contrast,  a
spot transaction  creates an immediate  obligation for the seller to deliver and
the buyer to accept delivery of and pay for an identified commodity. In general,
futures contracts involve  transactions in fungible goods such as wheat,  coffee
and  soybeans.  However,  in the last  decade an  increasing  number of  futures
contracts have been developed which specify financial instruments or financially
based indexes as the underlying commodity.

         U.S. futures  contracts are traded only on national  futures  exchanges
and are  standardized as to maturity date and underlying  financial  instrument.
The principal  financial futures exchanges in the United States are The Board of
Trade of the City of Chicago, the Chicago Mercantile Exchange, the International
Monetary Market (a division of the Chicago  Mercantile  Exchange),  the New York
Futures  Exchange and the Kansas City Board of Trade.  Each exchange  guarantees
performance  under  contract  provisions  through  a  clearing  corporation,   a
nonprofit  organization  managed  by the  exchange  membership,  which  is  also
responsible for handling daily  accounting of deposits or withdrawals of margin.
A futures commission  merchant ("Broker") effects each transaction in connection
with futures  contracts  for a  commission.  Futures  exchanges  and trading are
regulated  under the  Commodity  Exchange Act by the Commodity  Futures  Trading
Commission ("CFTC") and National Futures Association ("NFA").

INTEREST RATE FUTURES CONTRACTS

         The sale of an interest rate futures  contract creates an obligation by
a Fund, as seller, to deliver the type of financial  instrument specified in the
contract at a specified  future time for a specified  price.  The purchase of an
interest rate futures contract creates an obligation by a Fund, as purchaser, to
accept  delivery of the type of  financial  instrument  specified at a specified
future  time  for a  specified  price.  The  specific  securities  delivered  or
accepted,  respectively, at settlement date, are not determined until at or near
that date. The  determination is in accordance with the rules of the exchange on
which the futures contract sale or purchase was made.

         Currently,  interest rate futures contracts can be purchased or sold on
90-day U.S.  Treasury  bills,  U.S.  Treasury  bonds,  U.S.  Treasury notes with
maturities between 6 1/2 and 10 years, GNMA  certificates,  90-day domestic bank
certificates  of  deposit,   90-day  commercial  paper,  and  90-day  Eurodollar
certificates  of  deposit.  It is expected  that  futures  contracts  trading in
additional financial instruments will be authorized.  The standard contract size
is $100,000 for futures  contracts in U.S.  Treasury bonds,  U.S. Treasury notes
and GNMA certificates,  and $1,000,000 for the other designated contracts. While
U.S.  Treasury bonds,  U.S. Treasury bills and U.S. Treasury notes are backed by
the full  faith and  credit of the U.S.  government  and GNMA  certificates  are
guaranteed by a U.S. government agency, the futures contracts in U.S. government
securities are not obligations of the U.S. Treasury.

INDEX BASED FUTURES CONTRACTS, OTHER THAN STOCK INDEX BASED

         It is  expected  that  bond  index and other  financially  based  index
futures  contracts will be developed in the future.  It is anticipated that such
index based futures  contracts will be structured in the same way as stock index
futures  contracts  but will be measured by changes in interest  rates,  related
indexes or other  measures,  such as the consumer price index. In the event that
such futures  contracts are  developed,  the Funds will sell interest rate index
and other index based  futures  contracts  to hedge  against  changes  which are
expected to affect the Funds' portfolios.

         The purchase or sale of a futures contract differs from the purchase or
sale of a security, in that no price or premium is paid or received. Instead, to
initiate trading an amount of cash, cash equivalents,  money market instruments,
or U.S.  Treasury bills equal to approximately 1 1/2% (up to 5%) of the contract
amount  must be  deposited  by a Fund with the  Broker.  This amount is known as
initial  margin.  The  nature of  initial  margin  in  futures  transactions  is
different from that of margin in security transactions.  Futures contract margin
does not  involve  the  borrowing  of  funds  by the  customer  to  finance  the
transactions.  Rather, the initial margin is in the nature of a performance bond
or  good  faith  deposit  on the  contract  which  is  returned  to a Fund  upon
termination of the futures  contract  assuming all contractual  obligations have
been satisfied.  The margin required for a particular futures contract is set by
the exchange on which the contract is traded and may be  significantly  modified
from time to time by the exchange during the term of the contract.

         Subsequent  payments,  called variation  margin, to the Broker and from
the Broker, are made on a daily basis as the value of the underlying  instrument
or index fluctuates  making the long and short positions in the futures contract
more or less valuable,  a process known as mark-to-market.  For example,  when a
Fund has purchased a futures contract and the price of the underlying  financial
instrument or index has risen,  that position will have increased in value,  and
the Fund will receive from the Broker a variation  margin  payment equal to that
increase in value. Conversely, where a Fund has purchased a futures contract and
the price of the  underlying  financial  instrument or index has  declined,  the
position  would be less  valuable  and the  Fund  would  be  required  to make a
variation  margin payment to the Broker.  At any time prior to expiration of the
futures contract,  a Fund may elect to close the position. A final determination
of variation  margin is then made,  additional cash is required to be paid to or
released by the Broker, and the Fund realizes a loss or gain.

         The FUND intends to enter into arrangements with its custodian and with
Brokers to enable the initial  margin of a Fund and any  variation  margin to be
held in a segregated account by its custodian on behalf of the Broker.

         Although interest rate futures contracts by their terms call for actual
delivery  or  acceptance  of  financial  instruments,  and index  based  futures
contracts  call for the  delivery  of cash equal to the  difference  between the
closing value of the index on the expiration  date of the contract and the price
at which the futures  contract is  originally  made,  in most cases such futures
contracts are closed out before the settlement date without the making or taking
of delivery.  Closing out a futures  contract  sale is effected by an offsetting
transaction in which a Fund enters into a futures contract purchase for the same
aggregate amount of the specific type of financial  instrument or index and same
delivery  date.  If the price in the sale  exceeds  the price in the  offsetting
purchase,  the Fund is paid the  difference  and thus  realizes  a gain.  If the
offsetting  purchase price exceeds the sale price,  the Fund pays the difference
and realizes a loss.  Similarly,  the closing out of a futures contract purchase
is effected by an offsetting  transaction  in which a Fund enters into a futures
contract sale. If the offsetting sale price exceeds the purchase price, the Fund
realizes a gain.  If the purchase  price exceeds the  offsetting  sale price the
Fund realizes a loss.  The amount of the Fund's gain or loss on any  transaction
is reduced or increased,  respectively,  by the amount of any transaction  costs
incurred by the Fund.

         As an example of an offsetting transaction, the contractual obligations
arising  from the sale of one contract of September  U.S.  Treasury  bills on an
exchange  may be  fulfilled  at any time  before  delivery  of the  contract  is
required  (i.e. on a specified date in September,  the "delivery  month") by the
purchase of one contract of September U.S.  Treasury bills on the same exchange.
In such instance the difference  between the price at which the futures contract
was sold and the price paid for the  offsetting  purchase,  after  allowance for
transaction costs, represents the profit or loss to a Fund.

         There can be no assurance,  however,  that a Fund will be able to enter
into an  offsetting  transaction  with  respect to a  particular  contract  at a
particular time. If a Fund is not able to enter into an offsetting  transaction,
the Fund will  continue to be required  to maintain  the margin  deposits on the
contract and to complete the contract according to its terms.

OPTIONS ON FINANCIAL FUTURES

         The Funds intend to purchase call and put options on financial  futures
contracts  and sell such options to terminate an existing  position.  Options on
futures  are  similar to options  on stocks  except  that an option on a futures
contract  gives the  purchaser  the right,  in return for the premium  paid,  to
assume a position in a futures contract (a long position if the option is a call
and a short  position  if the option is a put)  rather  than to purchase or sell
stock at a specified exercise price at any time during the period of the option.
Upon exercise of the option,  the delivery of the futures position by the writer
of the option to the holder of the option will be accompanied by delivery of the
accumulated  balance  in  the  writer's  futures  margin  account.  This  amount
represents  the  amount by which the market  price of the  futures  contract  at
exercise exceeds,  in the case of a call, or is less than, in the case of a put,
the  exercise  price of the  option  on the  futures  contract.  If an option is
exercised the last trading day prior to the expiration  date of the option,  the
settlement  will be made  entirely in cash equal to the  difference  between the
exercise price of the option and value of the futures contract.

         The Funds  intend to use  options on  financial  futures  contracts  in
connection with hedging strategies. In the future the Funds may use such options
for other purposes.

PURCHASE OF PUT OPTIONS ON FUTURES CONTRACTS

         The purchase of protective put options on financial  futures  contracts
is analogous to the purchase of protective puts on individual  stocks,  where an
absolute  level of protection is sought below which no additional  economic loss
would be incurred by a Fund.  Put options may be  purchased to hedge a portfolio
of stocks or debt  instruments or a position in the futures  contract upon which
the put option is based.

PURCHASE OF CALL OPTIONS ON FUTURES CONTRACTS

         The purchase of call options on financial futures contracts  represents
a means of obtaining  temporary exposure to market appreciation at limited risk.
It is analogous to the purchase of a call option on an individual  stock,  which
can be used as a substitute for a position in the stock itself. Depending on the
pricing of the option  compared to either the futures  contract upon which it is
based, or upon the price of the underlying financial instrument or index itself,
purchase of a call option may be less risky than the  ownership  of the interest
rate or index based futures contract or the underlying securities.  Call options
on commodity  futures  contracts  may be purchased to hedge  against an interest
rate increase or a market advance when a Fund is not fully invested.

USE OF NEW INVESTMENT TECHNIQUES INVOLVING FINANCIAL FUTURES CON-
TRACTS OR RELATED OPTIONS

         The Funds may  employ new  investment  techniques  involving  financial
futures contracts and related options. The Funds intend to take advantage of new
techniques in these areas which may be developed from time to time and which are
consistent  with the Fund's  investment  objective.  The FUND  believes  that no
additional  techniques  have been  identified for employment by the Funds in the
foreseeable future other than those described above.

LIMITATIONS ON PURCHASE AND SALE OF FUTURES CONTRACTS AND RELATED
OPTIONS ON SUCH FUTURES CONTRACTS

         A Fund will not enter into a futures  contract if, as a result thereof,
more than 5% of the Fund's  total  assets  (taken at market value at the time of
entering  into the  contract)  would be  committed  to margin  deposits  on such
futures contracts.

         Each Fund  intends  that its  futures  contracts  and  related  options
transactions  will be entered into for traditional  hedging  purposes.  That is,
futures  contracts  will be sold to  protect  against a decline  in the price of
securities that a Fund owns, or futures contracts will be purchased to protect a
Fund against an increase in the price of securities it intends to purchase.  The
Funds do not intend to enter into futures contracts for speculation.

         In instances  involving the purchase of futures contracts by a Fund, an
amount of cash and cash  equivalents  equal to the market  value of the  futures
contracts  will be deposited in a segregated  account with the FUND's  custodian
and/or in a margin  account  with a Broker to  collateralize  the  position  and
thereby insure that the use of such futures is unleveraged.

FEDERAL INCOME TAX TREATMENT

         For federal  income tax  purposes,  a Fund is required to  recognize as
income  for each  taxable  year its net  unrealized  gains and losses on futures
contracts as of the end of the year as well as those  actually  realized  during
the year.  Any gain or loss  recognized  with  respect to a futures  contract is
considered to be 60% long term and 40% short term, without regard to the holding
period of the  contract.  In the case of a futures  transaction  classified as a
"mixed  straddle," the  recognition of losses may be deferred to a later taxable
year. The federal income tax treatment of gains or losses from  transactions  in
options on futures is unclear.

         In order for a Fund to  continue  to  qualify  for  federal  income tax
treatment as a regulated  investment  company,  at least 90% of its gross income
for a taxable year must be derived from qualifying income. Any net gain realized
from the closing out of futures contracts,  for purposes of the 90% requirement,
will be  qualifying  income.  In addition,  gains  realized on the sale or other
disposition  of  securities  held for less than three  months must be limited to
less  than 30% of a  Fund's  annual  gross  income.  The  1986  Tax Act  added a
provision   which   effectively   treats  both  positions  in  certain   hedging
transactions as a single transaction for the purpose of the 30% requirement. The
provision  provides that, in the case of any "designated  hedge,"  increases and
decreases  in the value of  positions  of the  hedge  are to be  netted  for the
purposes of the 30% requirement.  However,  in certain  situations,  in order to
avoid  realizing a gain within a three month  period,  a Fund may be required to
defer the closing out of a contract  beyond the time when it would  otherwise be
advantageous to do so.

RISKS OF FUTURES CONTRACTS

         Financial  futures  contracts  prices are volatile and are  influenced,
among other things, by changes in stock prices,  market  conditions,  prevailing
interest  rates and  anticipation  of future stock prices,  market  movements or
interest rate changes, all of which in turn are affected by economic conditions,
such as government  fiscal and monetary  policies and actions,  and national and
international political and economic events.                          

         At best, the correlation between changes in prices of futures contracts
and of the  securities  being  hedged  can be only  approximate.  The  degree of
imperfection of correlation  depends upon  circumstances,  such as variations in
speculative  market demand for futures  contracts and for securities,  including
technical  influences  in futures  contracts  trading;  differences  between the
securities being hedged and the financial instruments and indexes underlying the
standard futures contracts  available for trading,  in such respects as interest
rate levels,  maturities  and  creditworthiness  of issuers,  or  identities  of
securities  comprising the index and those in a Fund's  portfolio.  In addition,
futures contract  transactions involve the remote risk that a party be unable to
fulfill its obligations and that the amount of the obligation will be beyond the
ability of the clearing broker to satisfy.  A decision of whether,  when and how
to hedge involves the exercise of skill and judgment,  and even a well conceived
hedge  may be  unsuccessful  to  some  degree  because  of  market  behavior  or
unexpected interest rate trends.

         Because of the low margin deposits  required,  futures trading involves
an extremely  high degree of  leverage.  As a result,  a relatively  small price
movement in a futures contract may result in immediate and substantial  loss, as
well as gain, to the investor.  For example, if at the time of purchase,  10% of
the value of the futures  contract is deposited as margin, a 10% decrease in the
value  of the  futures  contract  would  result  in a total  loss of the  margin
deposit,  before any deduction for the  transaction  costs,  if the account were
then closed out, and a 15% decrease  would result in a loss equal to 150% of the
original  margin  deposit.  Thus,  a purchase or sale of a futures  contract may
result  in losses in excess of the  amount  invested  in the  futures  contract.
However, a Fund would presumably have sustained comparable losses if, instead of
entering into the futures contract,  it had invested in the underlying financial
instrument.  Furthermore,  in order  to be  certain  that a Fund has  sufficient
assets  to  satisfy  its  obligations  under a futures  contract,  the Fund will
establish a segregated  account in connection  with its futures  contracts which
will hold cash or cash  equivalents  equal in value to the current  value of the
underlying instruments or indices less the margins on deposit.

         Most U.S. futures  exchanges limit the amount of fluctuation  permitted
in  futures  contract  prices  during a single  trading  day.  The  daily  limit
establishes  the maximum  amount that the price of a futures  contract  may vary
either  up or down  from the  previous  day's  settlement  price at the end of a
trading  session.  Once the daily limit has been reached in a particular type of
contract,  no trades may be made on that day at a price  beyond that limit.  The
daily limit  governs only price  movement  during a  particular  trading day and
therefore  does not limit  potential  losses  because  the limit may prevent the
liquidation of unfavorable positions.  Futures contract prices have occasionally
moved to the daily limit for several  consecutive trading days with little or no
trading,   thereby  preventing  prompt  liquidation  of  futures  positions  and
subjecting some futures traders to substantial losses.

RISKS OF OPTIONS ON FUTURES CONTRACTS

         In  addition  to  the  risks  described  above  for  financial  futures
contracts,  there are  several  special  risks  relating  to  options on futures
contracts. The ability to establish and close out positions on such options will
be subject to the  development  and  maintenance of a liquid  secondary  market.
There  is no  assurance  that a  liquid  secondary  market  will  exist  for any
particular  contract or at any particular time. A Fund will not purchase options
on any futures  contract  unless and until it believes  that the market for such
options  has  developed  sufficiently  that the  risks in  connection  with such
options are not greater than the risks in connection with the futures contracts.
Compared  to the use of  futures  contracts,  the  purchase  of  options on such
futures  involves less  potential  risk to a Fund because the maximum  amount at
risk is the premium  paid for the options  (plus  transaction  costs).  However,
there may be circumstances when the use of an option on a futures contract would
result in a loss to a Fund, even though the use of a futures contract would not,
such as when there is no movement in the level of the futures contract.



Keystone America California Insured Tax Free Fund 

<PAGE>
SCHEDULE OF INVESTMENTS--November 30, 1994 

                                Coupon       Maturity    Principal       Market 
                                  Rate           Date       Amount        Value 

MUNICIPAL BONDS (95.7%) 
Alameda County, California, 
Certificates of 
Participation, Santa Rita 
Jail Project (MBIA)              5.700%    12/01/2014   $1,000,000  $   865,760 
California Educational 
Facilities Authority, 
Stanford University Project, 
Series H                         5.000     01/01/2015      250,000      195,215 
California State Public Works 
Board (AMBAC)                    5.250     12/01/2013      150,000      121,926 
California Statewide 
Communities Certificates 
(AMBAC)                          5.500     10/01/2014      650,000      542,412 
China Basin, California, 
Regional Financing Authority, 
Municipal Water District 
Sewer (AMBAC)                    6.000     08/01/2016      500,000      447,570 
Corona, California, 
Redevelopment Agency, Tax 
Allocation, Refunding 
Redevelopment Project, Area 
A, Series A (FGIC)               6.250     09/01/2016      500,000      458,265 
Los Angeles County, 
California, Transportation 
Commission, Series A (MBIA)      6.250     07/01/2013    1,300,000    1,204,177 
Los Angeles, California, 
Community Redevelopment 
Agency, Series H (FSA)           6.500     12/01/2016      340,000      319,185 
Los Angeles, California, 
Convention and Exhibition 
Center Authority, Lease 
Refunding, Series A (MBIA)       5.375     08/15/2018      240,000      194,167 
Los Angeles, California, 
Wastewater Systems, Series D 
(FGIC)                           6.000     11/01/2014    1,400,000    1,258,684 
MSR Public Power Agency, 
California, San Juan Project, 
Series B (MBIA)                  6.750     07/01/2011      400,000      398,684 
Oakland, California, 
Pensions, Series A (FGIC) (c)    7.600     08/01/2021    1,000,000    1,045,150 
Pleasant Hill, California, 
Joint Powers Financing, 
Capital Improvement Project, 
Series A (MBIA)                  5.250     12/01/2016      400,000      318,500 
Rio Linda, California, Union 
School District, Series A 
(AMBAC)                          7.400     08/01/2010      725,000      754,935 
Sacramento, California, 
Municipal Utility District, 
Series D (FGIC)                  5.250     11/15/2012      650,000      537,999 
San Francisco, California, 
City and County Sewer 
Refunding (AMBAC)                5.500     10/01/2015      900,000      747,675 
San Joaquin Hills, 
California, Transportation 
Corridor Agency, Toll Road       6.750     01/01/2032    3,000,000    2,654,100 
San Jose, California, Airport 
Refunding (MBIA)                 5.750     03/01/2016    1,295,000    1,111,796 
San Jose, California, 
Redevelopment Tax Allocation 
(MBIA)                           6.000     08/01/2015      610,000      550,446 
Santa Ana, California, 
Financing Authority (MBIA)       6.250     07/01/2015      300,000      278,967 
University of California, 
Multiple Purpose Project, 
Series C (AMBAC)                 5.125     09/01/2013      300,000      240,312 
University of California, 
Multiple Purpose Project, 
Series C (AMBAC)                 5.000     09/01/2013      200,000      157,628 
TOTAL MUNICIPAL BONDS 
(Cost--$14,837,308)                                                  14,403,553 
TEMPORARY TAX-EXEMPT 
INVESTMENTS (1.2%) 
San Diego County, California, 
Regional Transportation 
Commission, 
Series A (FGIC) (a) (Cost 
$180,000)                        3.500     04/01/2008      180,000      180,000 
TOTAL INVESTMENTS 
 (Cost--$15,017,308) (b)                                             14,583,553 
OTHER ASSETS AND LIABILITIES--NET (3.1%)                                460,709 
NET ASSETS (100.0%)                                                 $15,044,262 


See Notes to Schedule of Investments.                 (continued on next page) 

<PAGE>
 
Keystone America California Insured Tax Free Fund 

NOTES TO SCHEDULE OF INVESTMENTS: 

(a) Variable or floating rate instrument with periodic demand features. The 
Fund is entitled to full payment of principal and accrued interest upon 
surrendering the security to the issuing agent according to the terms of the 
demand features. 

(b) The cost of investments for federal income tax purposes amounted to 
$15,020,693. Gross unrealized appreciation and depreciation of investments, 
based on identified tax cost, at November 30, 1994 are as follows: 
                               
Gross unrealized appreciation          $  97,520 
Gross unrealized depreciation           (534,660) 
Net unrealized depreciation           ($ 437,140) 

(c) At November 30, 1994, Oakland, California, Pensions, Series A (FGIC), 
7.60%, 08/01/21, par value $100,000 was pledged to cover margin requirements 
for open futures contracts (See Note 1 of Notes to Financial Statements). At 
November 30, 1994, the bond pledged had a market value of $104,515. 
Information concerning open futures contracts to sell at November 30, 1994 is 
shown below: 


                                      Aggregate      Expiration 
                      Number of      Face Value         Date of      Unrealized 
                      Contracts    of Contracts       Contracts    Appreciation 

U.S. Treasury Bond 
Futures                  16          $1,600,000    December 1994        $16,563 
Municipal Bond 
Futures                  19           1,900,000    December 1994         71,312 
                         35          $3,500,000                         $87,875 


<PAGE>
 
Keystone America California Insured Tax Free Fund 

FINANCIAL HIGHLIGHTS--CLASS A SHARES 
(For a share outstanding throughout the period) 

                                                     February 1, 1994 
                                                     (Commencement of 
                                                       Operations) to 
                                                    November 30, 1994 

Net asset value: Beginning of period                          $10.000 
Income from investment operations 
 Investment income--net                                         0.439 
 Realized gains (losses) on investments--net                   (1.302) 
Total from investment operations                               (0.863) 
Less distributions 
 Dividends from investment income--net                         (0.437) 
Total distributions                                            (0.437) 
Net asset value: End of period                                $ 8.700 
Total return                                                    (8.78%)(b) 
Ratios/supplemental data 
Ratios to average net assets: 
 Operating and management expenses (a)                           0.41%(c) 
 Investment income--net                                          5.53%(c) 
 Portfolio turnover rate                                          104% 
Net assets, end of period (thousands)                         $ 3,006 


(a) Figures are net of the expense reimbursement by Keystone in connection 
with the voluntary expense limitation. Before expense reimbursement, the 
"Ratio of operating and management expenses to average net assets" would have 
been 1.66% (annualized) for the period February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(b) Total return is calculated from February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(c) Annualized. 

<PAGE>
 
Keystone America California Insured Tax Free Fund 

FINANCIAL HIGHLIGHTS--CLASS B SHARES 
(For a share outstanding throughout the period) 

                                            February 1, 1994 
                                            (Commencement of 
                                              Operations) to 
                                           November 30, 1994 

Net asset value: Beginning of period                 $10.000 
Income from investment operations 
 Investment income--net                                0.401 
 Realized gains (losses) on 
investments--net                                      (1.284) 
Total from investment operations                      (0.883) 
Less distributions 
 Dividends from investment 
income--net                                           (0.401) 
 Distributions in excess of 
investment income--net                                (0.036) 
Total distributions                                   (0.437) 
Net asset value: End of period                       $ 8.680 
Total return (a)                                       (9.00%)(c) 
Ratios/supplemental data 
Ratios to average net assets: 
 Operating and management expenses (b)                  1.16%(d) 
 Investment income--net                                 4.83%(d) 
 Portfolio turnover rate                                 104% 
Net assets, end of period (thousands)                $11,415 


(a) Without contingent deferred sales charge (CDSC). 
(b) Figures are net of the expense reimbursement by Keystone in connection 
with the voluntary expense limitation. Before expense reimbursement, the 
"Ratio of operating and management expenses to average net assets" would have 
been 2.36% (annualized) for the period February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(c) Total return is calculated from February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(d) Annualized. 

<PAGE>
 
Keystone America California Insured Tax Free Fund 

FINANCIAL HIGHLIGHTS--CLASS C SHARES 
(For a share outstanding throughout the period) 

                                            February 1, 1994 
                                            (Commencement of 
                                              Operations) to 
                                           November 30, 1994 

Net asset value: Beginning of period                 $10.000 
Income from investment operations 
 Investment income--net                                0.392 
 Realized gains (losses) on 
investments--net                                      (1.292) 
Total from investment operations                      (0.900) 
Less distributions 
 Dividends from investment 
income--net                                           (0.392) 
 Distributions in excess of 
investment income--net                                (0.028) 
Total distributions                                   (0.420) 
Net asset value: End of period                       $ 8.680 
Total return (a)                                       (9.08%)(c) 
Ratios/supplemental data 
Ratios to average net assets: 
 Operating and management expenses 
(b)                                                     1.16%(d) 
 Investment income--net                                 4.96%(d) 
 Portfolio turnover rate                                 104% 
Net assets, end of period (thousands)                $   624 


(a) Without contingent deferred sales charge (CDSC). 
(b) Figures are net of the expense reimbursement by Keystone in connection 
with the voluntary expense limitation. Before expense reimbursement, the 
"Ratio of operating and management expenses to average net assets" would have 
been 2.38% (annualized) for the period February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(c) Total return is calculated from February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(d) Annualized. 

<PAGE>
Keystone America California Insured Tax Free Fund 

STATEMENT OF ASSETS AND LIABILITIES 
November 30, 1994 
 Assets: 
 Investments at market value (identified 
 cost--$15,017,308) (Note 1)                                       $14,583,553 
 Cash                                                                      595 
 Receivable for: 
  Investments sold                                                     114,433 
  Fund shares sold                                                      91,880 
  Interest                                                             327,980 
 Due from Investment Adviser (Note 4)                                   52,422 
 Deferred organization expense (Note 1)                                  2,739 
  Total assets                                                      15,173,602 
Liabilities: 
 Payable for: 
  Income distribution                                                   73,515 
  Daily variation on open futures contracts (Note 1)                    35,437 
  Accrued reimbursable expenses (Note 4)                                 1,103 
 Other accrued expenses                                                 19,285 
  Total liabilities                                                    129,340 
Net assets                                                         $15,044,262 
Net assets represented by (Note 1): 
 Paid-in capital                                                   $16,432,969 
 Undistributed investment income--net                                    4,468 
 Accumulated realized gains (losses) on investments 
  and closed futures contracts--net                                 (1,047,295) 
 Net unrealized depreciation on investments                           (433,755) 
 Net unrealized appreciation of open futures contracts                  87,875 
  Total net assets                                                 $15,044,262 
Net asset value and redemption price per share (Note 2): 
 Class A Shares ($8.70 on 345,654 shares 
 outstanding)                                                      $ 3,005,802 
 Class B Shares ($8.68 on 1,314,391 shares  outstanding)            11,414,842 
 Class C Shares ($8.68 on 71,884 shares 
 outstanding)                                                          623,618 
                                                                   $15,044,262 
Offering price per share: 
 Class A Shares (including sales charge of 4.75%)                        $9.13 
 Class B Shares                                                          $8.68 
 Class C Shares                                                          $8.68 

STATEMENT OF OPERATIONS 
February 1, 1994 (Commencement of 
Operations) to November 30, 1994 

Investment Income (Note 1): 
Interest                                                           $   536,920 
Amortization                                                             3,152 
                                                                       540,072 
Expenses (Notes 1, 2 and 4): 
Management fee                                  $    49,627 
Shareholder services                                 16,901 
Custodian fees                                       18,355 
Accounting                                           11,753 
Auditing                                             10,766 
Legal                                                10,375 
Printing                                              9,018 
Registration fees                                     2,115 
Organization expenses                                 3,844 
Distribution Plan expenses                           66,865 
Miscellaneous expenses                                  435 
 Total expenses                                     200,054 
 Less: Reimbursement from Investment 
  Adviser (Note 4)                                 (109,791) 
 Net expenses                                                           90,263 
Investment income--net                                                 449,809 
Realized and unrealized gain (loss) on 
investments and futures contracts--net 
(Notes 1 and 3): 
Realized gain (loss) on: 
 Investments sold                                (1,073,341) 
 Closed futures contracts                            26,046 
Realized loss on investments and 
 closed futures contracts--net                                      (1,047,295) 
Net change in unrealized appreciation 
 (depreciation) on: 
Investments                                        (433,755) 
Open futures contracts                               87,875 
Net change in unrealized  appreciation 
or depreciation                                                       (345,880) 
Net loss on investments and futures 
 contracts                                                          (1,393,175) 
Net decrease in net assets resulting 
 from operations                                                  ($   943,366) 
<PAGE>
 
Keystone America California Insured Tax Free Fund 

STATEMENT OF CHANGES IN NET ASSETS 

                                            February 1, 1994 
                                            (Commencement of 
                                              Operations) to 
                                           November 30, 1994 

Operations: 
Investment income--net                           $   449,809 
Realized loss on investments and 
closed futures contracts--net                     (1,047,295) 
Net change in unrealized appreciation 
or depreciation                                     (345,880) 
  Net decrease in net assets 
resulting from operations                           (943,366) 
Distributions to shareholders from 
(Notes 1 and 5): 
Investment income--net--Class A 
Shares                                              (103,422) 
Investment income--net--Class B 
Shares                                              (327,857) 
In excess of investment 
income--net--Class B Shares                          (47,642) 
Investment income--net--Class C 
Shares                                               (17,973) 
In excess of investment 
income--net--Class C Shares                           (2,036) 
  Total distributions to shareholders               (498,930) 
Capital share transactions (Note 2): 
Proceeds from shares sold--Class A 
Shares                                             3,653,153 
Proceeds from shares sold--Class B 
Shares                                            13,549,247 
Proceeds from shares sold--Class C 
Shares                                               942,116 
Payment for shares redeemed--Class A 
Shares                                              (364,506) 
Payment for shares redeemed--Class B 
Shares                                            (1,189,908) 
Payment for shares redeemed--Class C 
Shares                                              (265,039) 
Net asset value of shares issued in 
reinvestment of distributions from: 
Investment income--net--Class A 
Shares                                                19,906 
Investment income--net and in excess 
of investment income--net-- 
Class B Shares                                       132,637 
Investment income--net and in excess 
of investment income--net-- 
Class C Shares                                         8,952 
Net increase in net assets resulting 
from capital share transactions                   16,486,558 
  Total increase in net assets                    15,044,262 
Net assets: 
Beginning of period                                        0 
End of period (Including 
undistributed investment income--net 
as follows: 1994--$4,468)                        $15,044,262 

See Notes to Financial Statements. 


<PAGE>
 
Keystone America Missouri Tax Free Fund 
SCHEDULE OF INVESTMENTS--November 30, 1994 
                                  Coupon     Maturity    Principal       Market 
                                    Rate         Date       Amount        Value 

MUNICIPAL BONDS (104.0%) 
Clay County, Missouri, Public 
Building Authority                7.000%  05/15/2014   $1,000,000   $1,004,850 
Columbia, Missouri, School 
District, Unlimited Tax, 
General Obligation                5.000   03/01/2013      465,000      377,906 
Franklin County, Missouri, 
Reorganized School District R 
Xi (FGIC)                         5.750   03/01/2013      150,000      133,719 
Greene County, Missouri, Single 
Family Mortgage (effective 
yield 6.530%)(a)                  0.000   03/01/2016    1,000,000      220,430 
Guam Airport Authority, Series 
B                                 6.400   10/01/2005      300,000      284,565 
Missouri Higher Education, Loan 
Authority, Student Loan, Series 
D                                 6.750   02/15/2009      500,000      465,850 
Missouri Higher Education, 
Student Loan, Series A            5.450   02/15/2009      600,000      486,690 
Missouri State Environmental 
Improvement and Energy 
Resources Authority, Water Poll 
Control, State Revolving Fund 
Project, Series A                 6.050   07/01/2015      250,000      226,193 
Missouri State Environmental 
Improvement and Energy 
Resources Authority               5.450   10/01/2028      500,000      385,215 
Missouri State Health and 
Educational Facilities 
Authority                         6.000   02/01/2024      750,000      578,212 
Missouri State Health and 
Educational Facilities 
Authority, Lester Cox Hospital    5.350   06/01/2010      710,000      609,031 
Missouri State Health and 
Educational Facilities 
Authority, Health Facilities 
Midwest, Series B (MBIA) (d)      6.100   06/01/2011      500,000      465,455 
Missouri State Health and 
Educational Facilities 
Authority, Barnes 
Jewish Inc.                       5.250   05/15/2012      300,000      242,673 
Missouri State Health and 
Educational Facilities 
Authority, Health 
Facility Refunding, Series Aa 
(MBIA)                            6.250   06/01/2016    2,000,000    1,844,520 
Missouri State Health and 
Educational Facilities 
Authority, St. Luke's Hospital 
(MBIA)                            5.125   11/15/2019      400,000      311,992 
Missouri State Health and 
Educational Facilities 
Authority, Health Systems, 
Series A                          6.500   02/15/2020      500,000      455,445 
Missouri State Health and 
Educational Facilities 
Authority, Children's Mercy 
Hospital Project                  6.000   08/15/2023    1,200,000      926,256 
Missouri State Health and 
Educational Facilities, 
Bethesda Health 
Group, Project A                  7.500   08/15/2012    1,000,000      939,290 
Missouri State Housing 
Development Commission, Single 
Family, 
GNMA, Series A                    7.125   12/01/2014      500,000      500,935 
Missouri State Regional 
Convention and Sports Project     5.500   08/15/2013      950,000      784,709 
Missouri State Water Pollution 
Control, Series A                 7.200   07/01/2016      600,000      605,964 
Puerto Rico Aqueduct and Sewer 
Authority, Series A               7.875   07/01/2017      230,000      240,957 
Puerto Rico Commonwealth, 
General Obligation                7.000   07/01/2010       20,000       19,625 
Puerto Rico Commonwealth, 
Highway and Transportation 
Authority, Series X               5.500   07/01/2019      450,000      361,850 
Puerto Rico Commonwealth, 
Highway and Transportation 
Authority, Series W               5.250   07/01/2020      605,000      464,325 
Puerto Rico Commonwealth, 
Telephone Authority               5.400   01/01/2008      700,000      610,939 
Puerto Rico Electric Power 
Authority, Power Revenue          6.000   07/01/2014      320,000      284,205 
Puerto Rico Industrial, 
Tourist, Educational, Medical 
and Environmental Control 
Facilities Authority              5.700   08/01/2013      300,000      247,281 
Puerto Rico Public Buildings 
Authority, Guaranteed Public 
Education 
and Health Facilities, Series M   5.700   07/01/2009      300,000      267,747 
Shrewsbury, Missouri, General 
Obligation, Unlimited Tax 
(FGIC)                            6.200   02/01/2012      100,000       93,910 

<PAGE>
 
Keystone America Missouri Tax Free Fund 
SCHEDULE OF INVESTMENTS--November 30, 1994 
                                 Coupon     Maturity    Principal       Market 
                                   Rate         Date       Amount        Value 
MUNICIPAL BONDS (continued) 
St. Charles, Missouri, Public 
Facilities Authority              5.650%  02/01/2008  $    95,000  $    86,785 
St. Louis County, Missouri, 
Regional Convention and Sports 
Project                           5.375   08/15/2006      150,000      129,611 
St. Louis County, Missouri, 
Public Facilities, Series A (d)   6.000   02/15/2013       50,000       46,037 
St. Louis County, Missouri, 
Regional Convention and Sports 
Facility, Convention and Sports 
Project                           5.750   08/15/2021    1,375,000    1,098,171 
St. Louis County, Missouri, 
Series D                          5.650   02/01/2015      250,000      211,120 
St. Louis, Missouri, Airport, 
Lambert St. Louis International 
(FGIC)                            6.125   07/01/2012      300,000      276,144 
St. Louis, Missouri, Municipal 
Finance Corp., Series A           5.850   07/15/2009      500,000      438,945 
University Development 
Foundation, Missouri, Power 
Plant Equipment                   5.750   05/01/2013      200,000      175,528 
University of Missouri, 
Refunding Improvement Systems 
Facilities                        5.500   11/01/2023       25,000       20,712 
University of Missouri, 
Refunding Improvement Systems 
Facilities                        5.200   11/01/2008      500,000      431,155 
Webster Groves, Missouri, 
General Obligation                5.500   02/01/2011    1,000,000      881,880 
TOTAL MUNICIPAL BONDS 
(Cost--$19,574,721)                                                 18,236,827 

TEMPORARY TAX-EXEMPT
 INVESTMENTS (3.5%)
Missouri State Health and 
Educational Facilities 
Authority (b) (Cost $615,000)     3.750   06/01/2014      615,000      615,000 
TOTAL INVESTMENTS 
(Cost--$20,189,721) (c)                                             18,851,827 
OTHER ASSETS AND 
LIABILITIES--NET (-7.5%)                                            (1,319,441) 
NET ASSETS (100.0%)                                                $17,532,386 


NOTES TO SCHEDULE OF INVESTMENTS: 

(a) Effective yield (calculated at the date of purchase) is the annual yield 
at which the bond accretes until its maturity date. 

(b) Variable or floating rate instrument with periodic demand features. The 
Fund is entitled to full payment of principal and accrued interest upon 
surrendering the security to the issuing agent according to the terms of the 
demand features. 

(c) The cost of investments for federal income tax purposes amounted to 
$20,197,065. Gross unrealized appreciation and depreciation of investments, 
based on identified tax cost, at November 30, 1994 are as follows: 

Gross unrealized appreciation         $    34,298 
Gross unrealized depreciation          (1,379,536) 
Net unrealized depreciation          ($ 1,345,238) 

(d) At November 30, 1994, Missouri State Health and Educational Facilities 
Authority, Health Facilities Midwest, Series B (MBIA), 6.100%, 06/01/11, par 
value $120,000 and St. Louis County, Missouri, Public Facilities, Series A, 
6.000%, 02/15/13, par value $30,000 were pledged to cover margin requirements 
for open futures contracts (See Note 1 of Notes to Financial Statements). At 
November 30, 1994, the bonds pledged had market values of $111,709 and 
$27,622, respectively. Information concerning open futures contracts to sell 
at November 30, 1994 is shown below: 

                                Aggregate        Expiration 
                  Number of    Face Value           Date of    Unrealized 
                  Contracts  of Contracts         Contracts  Appreciation 

U.S. Treasury 
Bond Futures        19         $1,900,000     December 1994       $13,656 
Municipal 
Bond Futures        23          2,300,000     December 1994        80,500 
                    42         $4,200,000                         $94,156 

<PAGE>
 
Keystone America Missouri Tax Free Fund 

FINANCIAL HIGHLIGHTS--CLASS A SHARES 
(For a share outstanding throughout the period) 

                                                             February 1, 1994 
                                                             (Commencement of 
                                                              Operations) to 
                                                                November 30, 
                                                                    1994 

Net asset value: Beginning of period                             $10.000 
Income from investment operations 
 Investment income--net                                            0.443 
 Realized gains (losses) on investments--net                      (1.279) 
Total from investment operations                                  (0.836) 
Less distributions 
 Dividends from investment income--net                            (0.443) 
 Distributions in excess of investment income--net                (0.001) 
Total distributions                                               (0.444) 
Net asset value: End of period                                   $ 8.720 
Total return                                                       (8.55%)(b) 
Ratios/supplemental data 
Ratios to average net assets: 
 Operating and management expenses (a)                              0.43%(c) 
 Investment income--net                                             5.38%(c) 
 Portfolio turnover rate                                              25% 
Net assets, end of period (thousands)                            $ 3,581 


(a) Figures are net of the expense reimbursement by Keystone in connection 
with the voluntary expense limitation. Before expense reimbursement, the 
"Ratio of operating and management expenses to average net assets" would have 
been 1.54% (annualized) for the period February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(b) Total return is calculated from February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(c) Annualized. 

<PAGE>
 
Keystone America Missouri Tax Free Fund 

FINANCIAL HIGHLIGHTS--CLASS B SHARES 
(For a share outstanding throughout the period) 

                                                          February 1, 1994 
                                                          (Commencement of 
                                                            Operations) to 
                                                         November 30, 1994 

Net asset value: Beginning of period                               $10.000 
Income from investment operations 
 Investment income--net                                              0.404 
 Realized gains (losses) on investments--net                        (1.290) 
Total from investment operations                                    (0.886) 
Less distributions 
 Dividends from investment income--net                              (0.404) 
 Distributions in excess of investment income--net                  (0.040) 
Total distributions                                                 (0.444) 
Net asset value: End of period                                     $ 8.670 
Total return (a)                                                     (9.06%)(c)
Ratios/supplemental data 
Ratios to average net assets: 
 Operating and management expenses (b)                                1.16%(d) 
 Investment income--net                                               4.70%(d) 
 Portfolio turnover rate                                                25% 
Net assets, end of period (thousands)                              $12,906 


(a) Without contingent deferred sales charge (CDSC). 
(b) Figures are net of the expense reimbursement by Keystone in connection 
with the voluntary expense limitation. Before expense reimbursement, the 
"Ratio of operating and management expenses to average net assets" would have 
been 2.49% (annualized) for the period February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(c) Total return is calculated from February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(d) Annualized. 

<PAGE>
 
Keystone America Missouri Tax Free Fund 

FINANCIAL HIGHLIGHTS--CLASS C SHARES 
(For a share outstanding throughout the period) 

                                                          February 1, 1994 
                                                          (Commencement of 
                                                            Operations) to 
                                                         November 30, 1994 

Net asset value: Beginning of period                               $10.000 
Income from investment operations 
 Investment income--net                                              0.388 
 Realized gains (losses) on investments--net                        (1.294) 
Total from investment operations                                    (0.906) 
Less distributions 
 Dividends from investment income--net                              (0.388) 
 Distributions in excess of investment income--net                  (0.046) 
Total distributions                                                 (0.434) 
Net asset value: End of period                                     $ 8.660 
Total return (a)                                                     (9.25%)(c) 
Ratios/supplemental data 
Ratios to average net assets: 
 Operating and management expenses (b)                                1.15%(d) 
 Investment income--net                                               4.72%(d) 
 Portfolio turnover rate                                                25% 
Net assets, end of period (thousands)                              $ 1,045 

(a) Without contingent deferred sales charge (CDSC). 
(b) Figures are net of the expense reimbursement by Keystone in connection 
with the voluntary expense limitation. Before expense reimbursement, the 
"Ratio of operating and management expenses to average net assets" would have 
been 2.60% (annualized) for the period February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(c) Total return is calculated from February 1, 1994 (Commencement of 
Operations) to November 30, 1994. 
(d) Annualized. 

<PAGE>
 
Keystone America Missouri Tax Free Fund 

STATEMENT OF ASSETS AND LIABILITIES 
November 30, 1994 

Assets: 
 Investments at market value (identified 
 cost--$20,189,721) (Note 1)                               $18,851,827 
 Cash                                                            3,631 
 Receivable for: 
  Investments sold                                             464,693 
  Fund shares sold                                             526,130 
  Interest                                                     357,058 
 Due from Investment Adviser (Note 4)                           47,512 
 Deferred organization expense (Note 1)                            231 
  Total assets                                              20,251,082 
Liabilities: 
 Payable for: 
  Investments purchased                                      2,568,444 
  Fund shares redeemed                                           5,020 
  Income distribution                                           80,746 
  Daily variation on open futures contracts (Note 1)            42,656 
  Accrued reimbursable expenses (Note 4)                           303 
 Other accrued expenses                                         21,527 
  Total liabilities                                          2,718,696 
Net assets                                                 $17,532,386 
Net assets represented by (Note 1): 
 Paid-in capital                                           $19,037,245 
 Accumulated distributions in excess of investment 
 income--net                                                    (7,792) 
 Accumulated realized gains (losses) on investments 
  and closed futures contracts--net                           (253,329) 
 Net unrealized depreciation on investments                 (1,337,894) 
 Net unrealized appreciation of open futures contracts          94,156 
  Total net assets                                         $17,532,386 
Net asset value and redemption price per share (Note 
2): 
 Class A Shares ($8.72 on 410,528 shares 
 outstanding)                                              $ 3,580,960 
 Class B Shares ($8.67 on 1,489,246 shares 
 outstanding)                                               12,905,977 
 Class C Shares ($8.66 on 120,781 shares 
 outstanding)                                                1,045,449 
                                                           $17,532,386 
Offering price per share: 
 Class A Shares (including sales charge of 4.75%)                $9.15 
 Class B Shares                                                  $8.67 
 Class C Shares                                                  $8.66 


STATEMENT OF OPERATIONS 
February 1, 1994 (Commencement of 
Operations) to November 30, 1994 

Investment Income (Note 1):
Interest                                                          $501,935 
Amortization                                                         7,904 
                                                                   509,839 
Expenses (Notes 1, 2 and 4): 
Management fee                                    $    47,930 
Shareholder services                                   25,820 
Custodian fees                                         18,627 
Accounting                                             10,954 
Auditing                                               10,766 
Legal                                                   7,691 
Printing                                                9,118 
Registration fees                                       2,115 
Organization expenses                                   3,853 
Distribution Plan expenses                             69,644 
Miscellaneous expenses                                    448 
 Total expenses                                       206,966 
 Less: Reimbursement from   Investment Adviser 
(Note 4)                                             (114,076) 
 Net expenses                                                       92,890 
Investment income--net                                             416,949 
Realized and unrealized gain (loss) on 
investments and futures contracts--net (Notes 1 
and 3): 
Realized gain (loss) on: 
 Investments sold                                    (298,920) 
 Closed futures contracts                              45,591 
Realized loss on investments and  closed futures 
contracts--net                                                    (253,329) 
Net change in unrealized appreciation 
 (depreciation) on: 
Investments                                        (1,337,894) 
Open futures contracts                                 94,156 
Net change in unrealized  appreciation or 
depreciation                                                    (1,243,738) 
Net loss on investments and closed  futures 
contracts                                                       (1,497,067) 
Net decrease in net assets resulting  from 
operations                                                     ($1,080,118) 


See Notes to Financial Statements. 

<PAGE>
 

Keystone America Missouri Tax Free Fund 

STATEMENT OF CHANGES IN NET ASSETS 

                                                              February 1, 1994 
                                                              (Commencement of 
                                                                Operations) to 
                                                             November 30, 1994 
Operations: 
Investment income--net                                             $   416,949 
Realized loss on investments and closed futures 
contracts--net                                                        (253,329) 
Net change in unrealized appreciation or depreciation               (1,243,738) 
  Net decrease in net assets resulting from operations              (1,080,118) 
Distributions to shareholders from (Notes 1 and 5): 
Investment income--net--Class A Shares                                 (58,702) 
In excess of investment income--net--Class A Shares                       (466) 
Investment income--net--Class B Shares                                (324,108) 
In excess of investment income--net--Class B Shares                    (58,892) 
Investment income--net--Class C Shares                                 (34,139) 
In excess of investment income--net--Class C Shares                     (5,609) 
  Total distributions to shareholders                                 (481,916) 
Capital share transactions (Note 2): 
Proceeds from shares sold--Class A Shares                            4,347,894 
Proceeds from shares sold--Class B Shares                           14,457,771 
Proceeds from shares sold--Class C Shares                            1,600,310 
Payment for shares redeemed--Class A Shares                           (570,413) 
Payment for shares redeemed--Class B Shares                           (479,634) 
Payment for shares redeemed--Class C Shares                           (448,097) 
Net asset value of shares issued in reinvestment of 
distributions from: 
Investment income--net and in excess of investment 
income--net-- 
Class A Shares                                                          29,808 
Investment income--net and in excess of investment 
income--net-- 
Class B Shares                                                         144,139 
Investment income--net and in excess of investment 
income--net-- 
Class C Shares                                                          12,642 
Net increase in net assets resulting from capital share 
transactions                                                        19,094,420 
  Total increase in net assets                                      17,532,386 
Net assets: 
Beginning of period                                                          0 
End of period [Including accumulated distributions in 
excess of investment income--net as follows: 
1994--($7,792)]                                                    $17,532,386 

See Notes to Financial Statements. 

<PAGE>
Keystone America State Tax Free Fund-Series II 

NOTES TO FINANCIAL STATEMENTS 

(1.) Significant Accounting Policies 

Keystone America State Tax Free Fund-Series II ("FUND") was formed as a 
Massachusetts business trust on December 15, 1993 and is registered under the 
Investment Company Act of 1940 (the Act) as an open-end management investment 
company. Keystone Custodian Funds, Inc. ("Keystone") is the Investment 
Adviser. The FUND currently offers shares of two separate series evidencing 
interests in different portfolios of securities ("Fund(s)"), the Keystone 
America California Insured Tax Free Fund ("California Fund") and the Keystone 
America Missouri Tax Free Fund ("Missouri Fund") which had no operations 
prior to February 1, 1994. The Funds are registered under the Act as 
non-diversified open-end investment companies. 

Each Fund currently issues three classes of shares. Class A shares are 
charged a sales charge of 4.75% payable at the time of purchase. Class B 
shares are sold subject to a contingent deferred sales charge payable upon 
redemption within three calendar years after the year of purchase. Class C 
shares are sold subject to a contingent deferred sales charge payable upon 
redemption within one year of purchase. Class C shares are available only 
through dealers who have entered into special distribution agreements with 
Keystone Distributors, Inc. ("KDI"), the FUND's principal underwriter. 

Keystone is a wholly-owned subsidiary of Keystone Group, Inc. ("KGI"), a 
Delaware corporation. KGI is privately owned by an investor group consisting 
of members of current and former management. Keystone Investor Resource 
Center, Inc. ("KIRC") a wholly-owned subsidiary of Keystone, is the FUND's 
transfer agent. 

The following is a summary of significant accounting policies consistently 
followed by the Funds in the preparation of their financial statements. The 
policies are in conformity with generally accepted accounting principles. 

A.  Tax-exempt bonds are valued on the basis of valuations provided by a 
pricing service, approved by the Board of Trustees, that uses information 
with respect to transactions in bonds, quotations from bond dealers, market 
transactions in comparable securities and various relationships between 
securities in determining value. Non-tax-exempt securities for which market 
quotations are readily available are valued at the price quoted which, in the 
opinion of the Board of Trustees or their representative, most nearly 
represents their market value. Short-term investments which are purchased 
with maturities of sixty days or less are valued at amortized cost (original 
purchase cost as adjusted for amortization of premium or accretion of 
discount) which when combined with accrued interest approximates market. 
Short-term investments maturing in more than sixty days for which market 
quotations are readily available are valued at current market value. 
Short-term investments maturing in more than sixty days when purchased which 
are held on the sixtieth day prior to maturity are valued at amortized cost 
(market value on the sixtieth day adjusted for amortization of premium or 
accretion of discount) which when combined with accrued interest approximates 
market. All other securities and other assets are valued at fair value as 
determined in good faith using methods prescribed by the Board of Trustees. 

A futures contract is an agreement between two parties to buy and sell a
specific amount of a commodity, security, financial instrument, or, in the
case of a stock index, cash at a set price on a future date. Upon entering
into a futures contract, each Fund is required to deposit with a broker an
amount ("initial margin") equal to a certain percentage of the purchase price
indicated in the futures contract. Subsequent payments ("variation margin")
are made or received by a Fund each day, as the value of the underlying
instrument or index fluctuates, and are recorded for book purposes as
unrealized gains or losses by a Fund. For federal tax purposes, any futures
contracts which remain open at fiscal year-end are marked-to-market and the
resultant net gain or loss is included in the Fund's federal taxable income.
<PAGE>
B. When issued or delayed delivery transactions arise when securities or 
currencies are purchased or sold by a Fund with payment and delivery taking 
place in the future in order to secure what is considered to be an 
advantageous price and yield to the Fund at the time of entering into the 
transaction. A separate account of liquid assets equal to the value of such 
purchase commitments will be maintained until payment is made. When issued 
and delayed agreements are subject to risks from changes in the value based 
upon changes in the level of interest rates and other market factors, both 
before and after delivery. 

C. Securities transactions are accounted for on the trade date. Interest 
income is recorded on the accrual basis. All premiums and original issue 
discounts are amortized/accreted for both financial reporting and federal 
income tax purposes. Realized gains and losses are recorded on the identified 
cost basis. 

 D. Each Fund has qualified and intends to qualify in the future as a 
regulated investment company under the Internal Revenue Code of 1986, as 
amended ("Internal Revenue Code"). Thus, each Fund is relieved of any federal 
income tax liability by distributing all of its net taxable investment income 
and net taxable capital gains, if any, to its shareholders. The tax-exempt 
interest portion of each dividend is declared uniformly based on the ratio of 
each Fund's tax-exempt and taxable income for the entire year. Each Fund 
intends to avoid excise tax liability by making the required distributions 
under the Internal Revenue Code. 

E. When a Fund enters into a repurchase agreement (a purchase of securities 
whereby the seller agrees to repurchase the securities at a mutually agreed 
upon date and price) the repurchase price of the securities will generally 
equal the amount paid by the Fund plus a negotiated interest amount. The 
seller under the repurchase agreement will be required to provide securities 
("collateral") to the Fund whose value will be maintained at an amount not 
less than the repurchase price and which generally will be maintained at 101% 
of the repurchase price. A Fund monitors the value of the collateral on a 
daily basis, and if the value of the collateral falls below required levels, 
the Fund intends to seek additional collateral from the seller or terminate 
the repurchase agreement. If the seller defaults, a Fund would suffer a loss 
to the extent that the proceeds from the sale of the underlying securities 
were less than the repurchase price. Any such loss would be increased by any 
cost incurred on disposing of such securities. If bankruptcy proceedings are 
commenced against the seller under the repurchase agreement, the realization 
on the collateral may be delayed or limited. Repurchase agreements entered 
into by a Fund will be limited to transactions with dealers or domestic banks 
believed to present minimal credit risks, and the Fund will take constructive 
receipt of all securities underlying repurchase agreements until such 
agreements expire. 

F. Organization expenses are being amortized to operations over a five-year 
period on a straight-line basis. In the event any of the initial shares are 
redeemed by any holder thereof during the five-year amortization period, 
redemption proceeds will be reduced by any unamortized organization expenses 
in the same proportion as the number of initial shares being redeemed bears 
to the number of initial shares outstanding at the time of redemption. 
Keystone America State Tax Free Fund--Series II 
<PAGE>
G. Distributions from net investment income are based on tax basis net 
income. From time to time, the Fund may distribute dividends which exceed 
book basis net income. Differences between book basis investment income--net 
available for distribution and tax basis investment income--net available for 
distribution are primarily attributable to differences in the treatment of 
12b-1 Distribution Plan charges and tax basis returns of capital. 

(2.) Capital Share Transactions 

The Declaration of Trust authorizes the issuance of an unlimited number of 
shares of beneficial interest without par value. Transactions in shares of 
the FUND were as follows: 
                                                         California Fund 
                                                          Class A Shares 
                                                        February 1, 1994 
                                                        (Commencement of 
                                                             Operations) 
                                                    to November 30, 1994 

Shares sold                                                      382,583 
Shares redeemed                                                  (39,080) 
Shares issued in reinvestment of distributions 
from: 
Investment income--net and in excess of 
investment income--net                                             2,151 
Net increase                                                     345,654 

                                                          Class B Shares 
                                                        February 1, 1994 
                                                        (Commencement of 
                                                             Operations) 
                                                    to November 30, 1994 

Shares sold                                                    1,429,334 
Shares redeemed                                                 (129,251) 
Shares issued in reinvestment of distributions 
from: 
Investment income--net and in excess of 
investment income--net                                            14,308 
Net increase                                                   1,314,391 

                                                          Class C Shares 
                                                        February 1, 1994 
                                                        (Commencement of 
                                                             Operations) 
                                                    to November 30, 1994 

Shares sold                                                       99,167 
Shares redeemed                                                  (28,249) 
Shares issued in reinvestment of distributions 
from: 
Investment income--net and in excess of 
investment income--net                                               966 
Net increase                                                      71,884 

                                                           Missouri Fund 
                                                          Class A Shares 
                                                        February 1, 1994 
                                                        (Commencement of 
                                                             Operations) 
                                                    to November 30, 1994 

Shares sold                                                      467,351 
Shares redeemed                                                  (60,027) 
Shares issued in reinvestment of distributions 
from: 
Investment income--net and in excess of 
investment income--net                                             3,204 
Net increase                                                     410,528 


<PAGE>
 
                                                          Class B Shares 
                                                        February 1, 1994 
                                                        (Commencement of 
                                                             Operations) 
                                                    to November 30, 1994 
Shares sold                                                    1,523,789 
Shares redeemed                                                  (50,032) 
Shares issued in reinvestment of distributions 
from: 
Investment income--net and in excess of 
investment income--net                                            15,489 
Net increase                                                   1,489,246 


                                                          Class C Shares 
                                                        February 1, 1994 
                                                        (Commencement of 
                                                             Operations) 
                                                    to November 30, 1994 
Shares sold                                                      167,136 
Shares redeemed                                                  (47,712) 
Shares issued in reinvestment of distributions 
from: 
Investment income--net and in excess of 
investment income--net                                             1,357 
Net increase                                                     120,781 


Each Fund bears some of the cost of selling its shares under a Distribution 
Plan adopted with respect to its Class A, Class B and Class C shares. 

The Class A Distribution Plan provides for payments which are currently 
limited to 0.15% annually of the average daily net asset value of Class A 
shares to pay expenses of the distribution of Class A shares. Amounts paid by 
each Fund to KDI under the Class A Distribution Plan are currently used to 
pay others, such as dealers, service fees at an annual rate of up to 0.15% of 
the average daily net asset value of shares sold by such others and remaining 
outstanding on the books of the Fund for specified periods. 

The Class B Distribution Plan provides for payments at an annual rate of up 
to 1.00% (currently limited to 0.90%) of the average daily net asset value of 
Class B shares to pay expenses of the distribution of Class B shares. Amounts 
paid by each Fund under the Class B Distribution Plan are currently used to 
pay others (dealers) (i) a commission at the time of purchase normally equal 
to 3.00% of the value of each share sold; and/or (ii) service fees currently 
at an annual rate of 0.15% of the average net asset value of share sold by 
such others and remaining outstanding on the books of the Fund for specified 
periods. 

The Class C Distribution Plan provides for payments at an annual rate of up 
to 1.00% (currently limited to 0.90%) of the average daily net asset value of 
Class C shares to pay expenses of the distribution of Class C shares. Amounts 
paid by each Fund under the Class C Distribution Plan are currently used to 
pay others (dealers) (i) a payment at the time of purchase of 1.00% of the 
value of each share sold, such payment to consist of a commission in the 
amount of 0.75% and the first year's service fee in advance in the amount of 
up to 0.25% (currently limited to 0.15%); (ii) beginning approximately 15 
months after purchase, a commission at an annual rate of 0.75% (subject to 
applicable limitations imposed by the rules of the National Association of 
Security Dealers, Inc.) and service fees at an annual rate of up to 0.25% of 
the average net asset value of shares sold by such others and remaining 
outstanding on the books of the Fund for specified periods. 

Each of the Distribution Plans may be terminated at any time by vote of the 
Independent Trustees or by majority of the outstanding voting shares of the 
respective class. However, after the termination of the Class B Distribution 
Plan, payments to KDI will continue at the annual rate of 1.00% of the 
average daily 

<PAGE>
 
Keystone America State Tax Free Fund--Series II 

net asset value of Class B shares, as compensation for its services which had 
been earned while the Class B Distribution Plan was in effect. Such 
unreimbursed distribution expenses at November 30, 1994 for Class B shares 
were $368,064, and $412,838 for the California Fund, and the Missouri Fund, 
respectively. 

During the period February 1, 1994 (Commencement of Operations) to November 
30, 1994, the California Fund and the Missouri Fund paid KDI (i) $2,813, and 
$1,634, respectively, pursuant to each Fund's Class A Distribution Plan; (ii) 
$60,793, and $61,502, respectively, pursuant to each Fund's Class B 
Distribution Plan; and (iii) $3,259, and $6,508, respectively, pursuant to 
each Fund's Class C Distribution Plan. 

Presently, the Fund's class-specific expenses are limited to Distribution 
Plan expenses incurred by a class of shares pursuant to its respective 
Distribution Plan. 

(3.) Securities Transactions 

As of November 30, 1994, the California Fund and the Missouri Fund had 
capital loss carryovers for federal income tax purposes of approximately 
$920,597 and $109,170, respectively, which expire in the year 2002. 

Realized gains and losses are recorded on the identified cost basis. Purchases
and sales of investment securities (including proceeds received at maturity),
during the period February 1, 1994 (Commencement of Operations) to November 30,
1994, for each Fund were as follows:

                                                 California Fund 
                                      Cost of           Proceeds 
                                    Purchases         From Sales 

Tax-exempt investments 
and futures contracts             $26,991,347        $11,106,744 
Short-term commercial and 
tax-exempt notes                   12,970,000         12,790,000 
                                  $39,961,347        $23,896,744 

                                                   Missouri Fund 
                                      Cost of           Proceeds 
                                    Purchases         From Sales 
Tax-exempt investments 
and futures contracts             $22,531,472        $ 2,703,422 
Short-term commercial and  
tax-exempt notes                   13,040,000         12,425,000 
                                  $35,571,472        $15,128,422 

(4.) Investment Management and Transactions with Affiliates 

Under the terms of the Investment Advisory and Management Agreement between 
Keystone and the FUND, dated December 15, 1993, Keystone provided investment 
advisory and management services to the FUND and its Funds. 

In return, Keystone was paid an amount computed and paid daily by applying 
percentage rates, which start at 0.55% and decline, as net assets increase, 
to 0.25%, to the average annual net asset value of each Fund. 

During the period February 1, 1994 (Commencement of Operations) to November 
30, 1994, the California Fund and the Missouri Fund paid or accrued to 
Keystone investment management and administrative services fees of $49,627, 
and $47,930, respectively. 

During the period February 1, 1994 (Commencement of Operations) to November 
30, 1994, the California Fund and the Missouri Fund paid or accrued to KIRC 
$16,901, and $25,820, respectively, for shareholder services. During the 
period February 1, 1994 (Commencement of Operations) to November 30, 1994, 
the California Fund and the Missouri Fund paid or accrued to KGI $11,753, and 
$10,954, respectively, as reimbursement for certain accounting services. 

<PAGE>
 
Keystone had voluntarily limited the expenses of Class A Shares of each Fund 
to 0.35% for six months, after which the expense limitation was increased by 
0.10% per month until November 1, 1994 when expenses were limited to 0.75%; 
expenses for Class B and C shares were limited to 1.10% for the Fund's first 
six months, after which the expense limitations were similarly increased 
until November 1, 1994 when expenses were limited to 1.50%. These expense 
limitations will continue until December 31, 1995. Keystone will not be 
required to make such reimbursement to the extent it would result in a Fund's 
inability to qualify as a regulated investment company under the provisions 
of the Internal Revenue Code. In accordance with these expense limitations, 
Keystone reimbursed the California Fund and the Missouri Fund (i) $23,507 and 
$12,109, respectively, with respect to each Fund's Class A Shares; (ii) 
$81,857 and $91,759, respectively, with respect to each Fund's Class B 
Shares; and (iii) $4,427 and $10,208, respectively, with respect to each 
Fund's Class C Shares. Keystone does not intend to seek repayment for these 
amount. 

 Certain officers and/or Directors of Keystone are also officers and/or 
Trustees of the FUND. Officers of Keystone and affiliated Trustees receive no 
compensation directly from the Fund. Currently, the Independent Trustees of 
the FUND receive no compensation for their services. 

(5.) Distributions to Shareholders 

Each Fund intends to declare dividends from net investment income daily and 
distribute to its shareholders such dividends monthly and to declare and 
distribute all net realized long-term capital gains, if any, at least 
annually. 
<PAGE>
 
Keystone America State Tax Free Fund-Series II 

INDEPENDENT AUDITORS' REPORT 

The Trustees and Shareholders 
Keystone America State Tax Free Fund--Series II 

We have audited the financial statements of Keystone America California 
Insured Tax Free Fund and Keystone America Missouri Tax Free Fund, portfolios 
of Keystone America State Tax Free Fund--Series II ("FUND"), including the 
schedules of investments as of November 30, 1994, and the related statements 
of operations, statements of changes in net assets and the financial 
highlights for the period from February 1, 1994 (Commencement of Operations) 
to November 30, 1994. These financial statements and financial highlights are 
the responsibility of the FUND's management. Our responsibility is to express 
an opinion on these financial statements and financial highlights based on 
our audit. 

We conducted our audit in accordance with generally accepted auditing 
standards. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements and 
financial highlights are free of material misstatement. An audit includes 
examining, on a test basis, evidence supporting the amounts and disclosures 
in the financial statements. Our procedures included confirmation of 
securities owned as of November 30, 1994 by correspondence with the custodian 
and brokers. An audit also includes assessing the accounting principles used 
and significant estimates made by management, as well as evaluating the 
overall financial statement presentation. We believe that our audit provides 
a reasonable basis for our opinion. 

In our opinion, the financial statements and financial highlights referred to 
above present fairly, in all material respects, the financial position of 
Keystone America California Insured Tax Free Fund and Keystone America 
Missouri Tax Free Fund as of November 30, 1994, and the results of their 
operations, the changes in their net assets and the financial highlights for 
the period from February 1, 1994 to November 30, 1994 in conformity with 
generally accepted accounting principles. 

                                                         KPMG PEAT MARWICK LLP 

Boston, Massachusetts 
January 6, 1995 



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