The Meridian circle of the Kuffner Observatory in Vienna was built 1884-1886 by Repsold & Söhne (Hamburg), optics by Steinheil & Söhne (Munich). It was the biggest Meridian circle in the Habsburg Monarchy, and so it is one of the largest in Europe. Using this Median circle was mainly 1890-1904 as part of the Zone program of Astronomische Gesellschaft.