.....................I have some questions regarding this pic and the ones preceding it.....

Ask away. Hamburg St. Pauli, especially the area around the Reeperbahn. ist the traditional redlight district of Hamburg. Actually one of the most traditional and established red light districts in Germany. Remember, Prostitution is legal and regulated in Germany. Prostitues pay taxes, get health insurance, mandatory annual medial check ups, mandatory condom use in brothels and are registerd by the state as "Sexual service providers".

Gosh, they're not exactly subtle with their signs here, eh?
"Subtle as a sledgehammer..." 🤣

I mean the very name of the establishment is "At the wedge/crack".

I'm beginning to wonder if my Great-Grandfather made a mistake by emigrating to America from Bavaria...