Recently, the grandfather of one of my friends died, and I helped him clean up the storage room he used. We found a lot of cool stuff there (well, he was alive during the occupation time in the second world war), but one thing stood out: In a box in the corner we found an old newspaper and a gramophone record plate. The newspaper was apparently printed during the war (somewhere near the end of January in 1941, according due to the faint numbers we saw), and the record plate only contained one song: The national anthem.
Later that day, we were talking with his grandmother, and she told us that the grandfather was on good terms with the Germans, and thus allowed to continue to print newspapers for the local community (of course censored), and to continue to use the small radio station he operated. He was allowed to do that in order to help the local fishermen with weather reports and news. He even was allowed to play the national anthem every time in the morning. Apparently the German officer liked him a lot...
But why did he keep those two specific parts? Even she did not know it, she just told us that directly after the transmission of that morning, the grandfather came home, and placed the plate in the box, together with the newspaper, and hid it. She never asked, and he never explained.
Of course, we were interested what could have caused that behaviour, and we listened a lot to the record plate, but we never discovered the mystery behind it. Maybe the newspaper could have helped us? The only thing that was still "readable" was the front image of it. I tried to scan it in as good as possible, and uploaded it. Unfortunately it is a bit too large for this page, thus it is stored here, but I could make it a bit smaller for a first impression (thanks to humn).
I also added the recording from the record plate here, after they have to be connected somehow (at least I think so).
Can you help my friend and me to discover the legacy of his grandfather?
Answer
Doing a Fourier transform on the scan from the newspaper gives us this in the lower left corner:
text: I IV VII C 1 5 11 AV BS CG DL FU NZ IX KM OW RE START:WXC MSGKEY:KCH
These are clearly settings for an Enigma Machine:
The rotors are I, IV, and VII
It uses Reflector C
The rings should be set toAEK (1, 5, 11)BFL because OP used pyEnigma incorrectly ([1,5,11] in pyEnigma is conventionally notated as 2 6 12 due to a 0/1-indexing discrepancy)
The ground (start) should be set to WXC
The plug board should be set to:A<->V
B<->S
C<->G
D<->L
F<->U
N<->Z
I<->X
K<->M
O<->W
andR<->E
Putting the Morse transmission from Matt's post through an Enigma machine with these settings we get
BARBAROSSAXSTARTETXZWEIXZWEIXJUNIXNULLXSECHSXNULLXNULLXBEREITETXTRUPPENXVORXHEILXHITLER
or more readable:
Barbarossa startet zwei zwei Juni null sechs null null bereitet Truppen vor heil Hitler
Thus your friend's grandfather's legacy is
an involvement in Operation Barbarossa, which began on 22 June (apparently, from this transmission at 0600 hours)
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