When you go to go to google streetview you can easily find the street named Schuitendiep in Groningen, it doesn't look like the numbering is the same now as what it was then. You would have to go to the archives or someplace online to locate some kind of a map or table with the old numbering system that would give you the modern numbers. By the look of the buildings, the original building can very well still be there. I found a postcard that has a view of Schuitendiep as it looked around 1900.