Im lost. I get the symmetry, using TWT as the middle, right? But those co-ordinates just point to farmland not actually that close to berlin. But the compass points to those coordinates pretty closely (its hard to tell with that kind of distance). But what kind of cipher does this indicate? It can’t be rotational like k3 (the letter frequencies dont meet). So Quagmire III? Maybe the plaintext of k4 is in German? Letter frequencies actually really close…
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