Considering the Nh Berlin Frankfurter Allee in Berlin?
A VT member wrote the following comment about visiting Berlin:
Looking for a post office? by matcrazy1
Whenever you are looking for the post office (Postämt) in Germany look for characteristic bright yellow logo of Bundespost (German Post) with black "postal/hunting?-horn", on the right on my picture. And don't forget to look at your watch, there were no non-stop post offices in Berlin, or I didn't find them.
The logo was put on my small centre/downtown of Berlin map to mark each post office what I found very useful. I got the map free at my hotel