You've found a mystery machine with a sticky note attached to it! Oh, there's also this picture of the machine you found.
It really gets your gears Turing. I hear there's something Naval about it.
It was one of the crazy challenge for me. I had read the whole wikepedia page at that time. So we got two files
note.txt Mysterybox.png
Actually the machine that is given in the MysterBox image is actually a cipher machine used by the germans.
I got one great website Engima Machine
In note.txt file these content was their
Geheimnis: PXQQ TAMY YDBC WGYE LVN
Umkehrwalze: B
Grundstellung: PPP
Ringstellung: LOG
Steckerbrett: G-L, H-F
so just fill it up
and we got the flag just remove spaces from Cipher/Clear Text
Flag:QUITEPUZZLINGINDEED
~Thanks