See Winifred Baer, et el, Carl Daniel Freydanck 1811-1887, Ein VedutenMaler der KPM, Berlin, 1987, for an in-depth dicussion on Freydanck's work.
The view of the Royal Palace and Long Bridge is based on a watercolour and ink design executed in 1832 by Johann Christian August Walter and now in the collection of the Königliche Porzellan-Manufaktur, Berlin and on a painting by Carl Daniel Freydanck of 1842 now in the KPM Archive, Schloss Charlottenburg, Berlin. See Derek E. Ostergard, ed., Along the Royal Road: Berlin and Potsdam in KPM Porcelain and Painting 1815-1848. The Bard Center for Graduate Studies in the Decorative Arts, New York, 1993, cat. nos. 6 & 7. The Brandenburg Gate, closely identified with the city of Berlin, was designed by Carl Gotthard Langhans between 1733 and 1808. A vase painted with the same view of the gate as the present example is in a private collection. See Ostergard, ed., op cit., no. 30. and fig. 4-19 for a breakfast set with topographical cups of the same form.