Hi!

I made this one compiled with the keys of 340 /408 .

I observed, that, at least, partially ,
The key values of 340 versus 408 have something to connect them. I mean, typewriter keyboard, which revolves around something I have already posted on this topic .

Basically , some symbols , acquire the value of an adjacent key in a standard QWERTY typewriter.
For example
Alphabetic Symbols
E , 408 = E ,340 = R
L, 408 = T , 340 = G.
Just view the images to understand .
Note also that some of the alphabetic symbols also have some adjacent
Look at the values of the keys , and the keyboard of the typewriter

Hello
Well, as I had already posted, when we put the final sequence "EBEORIETEMETHHPITI", in reverse (mirrored), I got some interesting things,

Now, I have heard a curiosity.

I put the decoded message, according to the video that Dave posted to suggest what method was used to encode the Cipher.

That is, vertically in 17 columns of 9 rows.
I put below the mirrored sequence

Some interesting things came up (visually can be checked in the image)

The METH fragment caught my attention for two reasons

It appears in the same column projected below
In projection , goes against the diagonal METH sequence

There is one thing to consider

The METH fragment is in the following context in the deciphered message

I HOPE YOU ARE HAVING LOTS OF FAN IN TRYING TO CATCH ME THAT WASNT ME ON THE TV SHOW.

Watch

catch ME THat
That would be strange, because, as Z would know, this would happen.("ME" closes one "sentence", TH starts the other , which refers to the TV program)

There are some possibilities

1-There was a pre-designed message that was changed in view of the event ( TV program) The beginning of the "original" message, containing Catch Me followed by TH
I mean, something like …..
I HOPE YOU ARE HAVING LOTS OF FAN IN TRYING TO CATCH ME THE PIGS …etc
2- Z made the message later, making the fragment adapt to the "key hint".
3- As much as possible, this is coincidence.

Curious is that this fragment was discussed in cipher 408

The last 18 letters of the 408 decode to a sequence of gibberish: EBEORIETEMETHHPITI
Many symbols among the last 18 symbols are found directly above in the same columns. The "QEHM" (METH) sequence is particularly noteworthy.

http://zodiackillerciphers.com/wiki/index.php?title=Encyclopedia_of_observations

–

Finally, sharing and speculating as always

Marcelo

ps:If you don’t understand my English, you can ask me what I’m trying to explain

Hello.
Interesting ,
In a way, these triangles are linked to "typewriter theory" ( QWERTY)

Note , they both follow their values on keys to adjacent letters on a standard keyboard.

I mean:
in 408 are S and A respectively, and no 340 are L and P

Marcelo

Hello.

Observing the CONTEXT .
When we have the cipher decoded in columns, something like "oh tit willow" appears, which, as we know, has connection with communications from Zodiaco (The Mikado/Willow, tit-willow).https://en.wikisource.org/wiki/The_Mikado/Willow,_tit-willow

Sharing

Marcelo

Hello

Those who have read what I have already posted will understand
When we arrange the final sequence of letters contained at the end of z408, I mean EBEORIETEMETEMHHPITI in mirrored form on two lines (ITIPHHTHTEMETEIROEBE), just below, in relation to the decoding of the last two lines of the cipher 340

Some letters appear in mirror form .

Letters I and E and letters P ( PARADICE)

The frequency of the letters E and I in the English language are large I know, but I found interesting the "symmetrical" mirror shape (like an inverted "template"), in two lines / 3 letters in one line and 3 letters in the other.

Sharing

Marcelo

Hello
In another research I am doing, I ended up "stumbling" on this, it is not related to the Z340, but to the Z408 .

In this case, it is quite simple.

I put the cipher in columns , with the exact size of the original , that is , 24 rows and 17 columns .

I observed that in diagonal appear some words, but, these for the CONTEXT (Halloween card, and the magazine of Red Mask) They are very interesting.

Note, that no leaps of faith are needed, just a simple diagonal reading, and that, at least, both CONTEXT words, are in the same "zone" of observation

BOO ,Gun , Fire .

Sharing.

Marcelo

Hello!

I found it interesting ,
to have both ciphers, originals, in vertical form, keeping their original characteristics, that is
z340 = 20×17
z408= 24 x 17

The black circles, in the case of the 408, 3 of them, have a diagonal reading in period 19 (which starts with a triangle symbol, and beside the first black circle, is also the same triangle).
On the 340 , and reversed diagonal reading at similar period.

Marcelo

Hello.
UR DIE , that appears in the 340 (with the symbols ), appears , in a certain way in the 408 , when we dispose of the way I have been presenting

Marcelo

I noticed that several letters , "Gabaritam" , when we relate the flat text of 408 and 340 in a certain way.
It remains to be seen, what may be coincidence and what may be intentional.
I am building something around this .
Example, first line.

It must be a coincidence, some letters they fit( I didn’t observe diligently )
IS caught my attention because it fits with "LIFE IS" (unaltered part of the second decoding part)

The final part of 340 has some similarity with the part of lines 15 and 16 of 408.

340 and 408 -symbols mirrored in "period 19"

Hi!!
I found it interesting that the beginning of the decoding of 340 is similar to the final excerpt of the letter with the bomb diagram -together with my name is.
(sorry if someone has already posted about it)

"I hope you are having lots of fun in trying to catch me.."

"I Hope you have a fun trying to.."

Marcelo

Hello.
I noticed that within the sequence of symbols

Z, O, black triangle, A, I, K, at the end of cipher 340 (last line)

which, for a long time, was thought to be something like a signature

"ZODAIK " (Zodiac)

It contains 3 symbols in sequence that form the first diagonal reading (period 19)

symbols – black triangle, I and K.

Marcelo

Interesting ,
In the z408, when we read vertically, that is, in columns, the symbols .
It appears
ZIGZAG (in zigzag) – Which is a coding method observed in the book "Codes & Ciphers", https://drive.google.com/file/d/0Bx2ZxPLdifaoZUFJMTJnN1RqMTg/view

wikipedia :https://en.wikipedia.org/wiki/Rail_fence_cipher

Zigzag cipher
The term zigzag cipher may refer to the rail fence cipher as described above. However, it may also refer to a different type of cipher system that looks like a zigzag line going from the top of the page to the bottom. As described in Fletcher Pratt’s Secret and Urgent, it is "written by ruling a sheet of paper in vertical columns, with a letter at the head of each column. A dot is made for each letter of the message in the proper column, reading from top to bottom of the sheet. The letters at the head of the columns are then cut off, the ruling erased and the message of dots sent along to the recipient, who, knowing the width of the columns and the arrangement of the letters at the top, reconstitutes the diagram and reads what it has to say."[1]

Hello.
I found it interesting that "KILLING" of the 408 text , when in vertical , become symmetrical .

Also that the G at the end starts something like "GUN".

Fire ends in the column that starts KILLED.

In the undecoded cipher, also vertically arranged, there is BY (symbols), in the region of "GUN".

At the end there is something, with the symbols, "IS DIE BURN".