<PAGE>
September 29, 1995
VIA EDGAR
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, D.C. 20549
RE: RULE 24F-2 NOTICE FOR KEYSTONE HIGH INCOME BOND FUND (B-4)
(FORMERLY KEYSTONE CUSTODIAN FUND, SERIES B-4) (THE "FUND");
REGISTRATION STATEMENT NO. 2-10526/811-95
Dear Sirs and Madams:
Pursuant to Rule 24f-2(b)(1) under the Investment Company Act of 1940
(the "Act"), you are hereby notified as follows:
(i) The fiscal year of the Fund for which this Notice is filed is
the year ended July 31, 1995.
(ii) The number of shares of the Fund registered under the
Securities Act of 1933 other than pursuant to Rule 24f-2
remaining unsold at the beginning of such fiscal year was 0.
(iii) The number of shares of the Fund registered during such fiscal
year other than pursuant to Rule 24f-2 was 86,424,069.
(iv) The number of shares of the Fund sold during such fiscal year
was 53,793,682.*
(v) The number of shares of the Fund sold during such fiscal year
in reliance upon registration pursuant to Rule 24f-2 was 0.
<PAGE>
Securities and Exchange Commission
Page 2
September 29,1995
*Pursuant to Rule 24f-2(c), the filing fee for this Notice was calculated as
follows:
(a) Actual aggregate sales price of
shares sold pursuant to Rule
24f-2 during the fiscal year: $0
(b) Reduced by the difference between:
(1) The actual aggregate redemption
price of shares of the Fund
redeemed during the fiscal year: $240,425,711
and
(2) The actual aggregate redemption
price of such redeemed shares
previously applied pursuant to
Rule 24e-2(a) in filings made
pursuant to Section 24(e)(1) of
the Act: $0
($240,425,711)
-------------
(c) Net aggregate sales price: ($240,425,711)
(d) Fee computed at 1/29 of 1%: $0
Sincerely yours,
/s/ James M. Wall
James M. Wall
Enclosures
