<PAGE> PAGE 1
000 A000000 04/30/94
000 C000000 0000055611
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 KEYSTONE CUSTODIAN B-1
001 B000000 811-092
001 C000000 6173383200
002 A000000 200 BERKELEY STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
022 A000001 PRUDENTAL
022 B000001 22-2347336
022 C000001 277037
022 D000001 0
022 A000002 GOLDMAN SACHS
022 B000002 13-5108880
022 C000002 269003
022 D000002 0
022 A000003 KIDDER PEABODY
022 B000003 13-5650440
022 C000003 198768
022 D000003 0
022 A000004 SMITH BARNEY
022 B000004 13-371860
022 C000004 106488
022 D000004 0
022 A000005 CARROLL MACENTEE
022 B000005 13-2650272
022 C000005 72165
022 D000005 0
022 A000006 A.C. SECURITIES
022 C000006 50756
022 D000006 0
022 A000007 SANWA - BG
022 B000007 13-3154528
022 C000007 43488
022 D000007 0
022 A000008 PAINE WEBBER
022 B000008 13-2638166
<PAGE> PAGE 2
022 C000008 41689
022 D000008 0
022 A000009 NEUBERGER
022 B000009 13-5521910
022 C000009 10733
022 D000009 0
022 A000010 ACCEPTANCE
022 C000010 59
022 D000010 0
023 C000000 1070186
023 D000000 0
028 A010000 5778
028 A020000 1452
028 A030000 0
028 A040000 15429
028 B010000 16064
028 B020000 1433
028 B030000 0
028 B040000 20748
028 C010000 3952
028 C020000 1255
028 C030000 0
028 C040000 12434
028 D010000 2466
028 D020000 1219
028 D030000 0
028 D040000 17251
028 E010000 11757
028 E020000 1222
028 E030000 0
028 E040000 18319
028 F010000 13094
028 F020000 1201
028 F030000 0
028 F040000 17941
028 G010000 53111
028 G020000 7782
028 G030000 0
028 G040000 102122
028 H000000 0
042 A000000 0
042 B000000 0
042 C000000 100
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 1997
044 000000 0
062 A000000 Y
<PAGE> PAGE 3
062 B000000 0.0
062 C000000 0.0
062 D000000 5.6
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 11.7
062 N000000 39.3
062 O000000 1.6
062 P000000 37.7
062 Q000000 3.6
062 R000000 0.5
063 A000000 0
063 B000000 11.0
064 A000000 Y
064 B000000 N
071 A000000 342447
071 B000000 386473
071 C000000 397425
071 D000000 81
072 A000000 6
072 B000000 13482
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 1145
072 G000000 0
072 H000000 0
072 I000000 507
072 J000000 91
072 K000000 2
072 L000000 13
072 M000000 18
072 N000000 24
072 O000000 0
072 P000000 0
072 Q000000 11
072 R000000 9
072 S000000 10
072 T000000 1997
072 U000000 0
072 V000000 0
072 W000000 13
072 X000000 3840
072 Y000000 0
072 Z000000 9642
<PAGE> PAGE 4
072AA000000 0
072BB000000 1147
072CC010000 0
072CC020000 31259
072DD010000 0
072DD020000 0
072EE000000 0
073 A010000 0.3600
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.1300
074 A000000 1
074 B000000 21389
074 C000000 59
074 D000000 358632
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 4017
074 K000000 0
074 L000000 4750
074 M000000 63
074 N000000 388911
074 O000000 4994
074 P000000 18
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 1867
074 S000000 0
074 T000000 382032
074 U010000 25401
074 U020000 0
074 V010000 15.04
074 V020000 0.00
074 W000000 0.0000
074 X000000 18908
074 Y000000 0
075 A000000 0
075 B000000 422847
076 000000 0.00
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
<PAGE> PAGE 5
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078 000000 N
080 A000000 ICI MUTUAL INSURANCE COMPANY
080 B000000 FREDERICK JAMES
080 C000000 30000
081 A000000 Y
081 B000000 34
082 A000000 N
082 B000000 0
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 N
085 B000000 N
SIGNATURE KEVIN MORRISSEY
TITLE ASSISTANT TREASURER