Former glacée leather goods factory Karplus & Herzberger (rented) in courtyard factory of Prinzenallee 82

North of the former healing spring "Gesundbrunnen" with preörtlichen health resort Louisenbad (Badstraße) settled in the parzellierten Wassermühlen-Gut along the river Panke from the middle of the 19th century also the tanner and leather goods industry. Their emissions had an adverse effect on the water quality (used as a reservoir) and the smells soon earned the river the name "Stinky Panke" in Berlin vernacular, and the district, which was increasingly populated by proletarians in the form of metal barracks, was soon known as "Plumpe". Despite this, Prinzenallee was also the location of the Groterjahn malt brewery (Prinzenallee 75-80). Around 1900, the rear parts of the parcel, which were adjacent to the river, were divided off in a communalized manner in order to build Travemünder Straße there. One of those ancestral businesses was the Glacé- und Chair-Lederwaren-Manufaktur und Lohnfärberei Karplus & Herzberger. Margarete Karplus, who studied chemistry, was the heiress of her parents' leather factory (in a rented, three-story brick factory building with solid ceilings, which the landowner Paul Opitz had built around 1876 for the farm business) - she sold her shares in the business and invested elsewhere. She became famous as Theodor W. Adorno´s wife "Gretel" Adorno and as a friendly supporter of Walter Benjamin in French exile. Walter Benjamin's younger brother, the pediatrician and communist city district deputy Georg Benjamin, lived with his wife, the lawyer Hilde in the workers' rented house of the Arnheim´schen money cabinet factory in the Badstra;e 40/41. The residence of the Karplus family, on the other hand, was located separately near the Panke in the Prinzenallee nördlich then Christianiastra;e (Osloer Straße).