The respected painter Eduard Anderson led the effort to convert the former town hall into a museum, which opened in 1928 with 25 rooms.
It contained portraits of Johann Georg Hamann, the Magus of the North, and Lord Mayor August Wilhelm Heidemann, as well as a bust of E. T. A. Hoffmann.
Its attractions also included a banner of the Napoleonic-era East Prussian National Cavalry Regiment, a Viking sword, copper engravings, household goods, amongst other artifacts.
These included Kant's hat, shoe buckles, walking stick, testament, death mask, and numerous pictures and sculptures.
The exhibit, which was especially popular with foreign-born Kant followers, expanded into the Kant-Museum in 1938, the same year that Fritz Gause became director of the museum.