Radio Freytag
The building, which housed a store of “Radio Freytag”, had a large illuminated advertisement of the Saba company below the edge of the roof. The device, which presumably consisted of blue luminous tubes, probably dates from the 1950s. It was removed at the latest with the renovation of the building at Rheinstrasse 4. The two photos are from July 2014.
In March 2018, there is hardly anything left of the device: