In the 1940's, the streetcars of Zurich were painted in the traditional colours of the city, blue and white. The new completely blue trams, later nicknamed "Kurbeli" because of the tiny handcrank for the driver, became a matter of argument. Soon, the upper part was painted white to silence complaints. One of those streetcars found a home at the Tram-Museum Zurich, painted all blue again. It's roadworthy and can be seen on the Museum Line 21.