# The Special Fish Report

## Albert W. Small (December 1944)

### Page 70

Tony Sale's
Codes and Ciphers

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CX/MSS TOP SECRET Special Fish Report Page 70

If((DeltaPSI')A + (DeltaPSI')B)=
The sum most likely came from:

L0
L0 L0 x x 80%
L4 L4 . . 7%
L5 L5 . . 6%

L1
L4 L5 . . 36%
L3 L4 . . 31%
L2 L3 . . 10%
L4 L5 x x 8%
L3 L4 x x 6%
L0 Ll x x 6%

L2
L4 L4 . . 20%
L3 L5 . . 20%
L0 L2 x x 15%
L2 L4 . . 13%
L3 L3 . . 13%
L4 L4 x x 4%
L3 L5 x x 4%

L3
L0 L3 x x 34%
L3 L4 . . 28%
L2 L3 . . 12%
L2 L5 . . 9%
L3 L4 x x 6%

L4
L0 L4 x x 59%
L2 L4 . . 14%
L3 L3 . . 10%
L1 L5 . . 3%

L5
L0 L5 x x 81%
L2 L3 . . 10%
L1 L4 . . 5%

If limitation in first position not = limitation in second position,

we have:

P(0 crosses in the delta psi prime sum) = B0C0 + 5B1C1 + 10B2C2

+ 10B3C3 + 5B4C4 + B5C5 = .029

l/5*P(l cross in the delta psi prime sum) = .024
1/l0*P(2 crosses in the delta psi prime sum) = .023
1/10*P(3 crosses in the delta psi prime sum) = .029
1/5 *P(4 crosses in the delta psi prime sum) = .046
P(5 crosses in the delta psi prime sum) = .088

and the deciban table is as follows, when the limitations are different:

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