A bit of a "spiritual successor" to the last map I made. This is the post-1920 Kingdom of Prussia in EotR, which is currently on hiatus but will likely be getting a reboot once I finish with UFatKW.
Unlike the last one, which ate up a lot of time, this one was made with a focus on rapidly applying what I learned from the last map, as a sort of 'how fast can I use this basemap and these ideas to churn out a quick but still aesthetically pleasing map?' - the answer is a couple hours, probably faster if I don't fence-sit about a bunch of the details; the internal divisions are just the historical ones, with the Danzig-Marienwerder subdivisions merged. There's no key, but it uses the same city levels as the other maps made with this base (including the Bavaria one) and the rest is pretty self-explanatory, I think.