Kölnisch Wasser Eau de Cologne This number was once part of the street adress (Glockengasse 4711) of the company producing the traditional perfume from Cologne, which coined the term "cologne" as a synonym for perfume all over the world and is still being referenced a lot. Categories: KölnNumerology Cookies help us deliver our services. By using our services, you agree to our use of cookies.More informationOK