A rare Oscar and Edgar Gutherz milk jug

The other Saturday I bought this to our friend Dorita. It stroked my attention the cylindrical shape of the blank with the curved feet and the characteristic curves of the handle. It seems that this is an old model revisited with a very modern style for that time that must have been done around the end of 1890. Searching on the web I find several pages where similar items were defined as done in Wien or Vienna like the one that can be seen at Museo Stibbert (Art Museum) Florence, Italy http://www.gettyimages.com.au/detail/news-photo/teapot-porcelain-viennese-manufacture-austria-18th-century-news-photo/157410781#teapot-porcelain-viennese-manufacture-austria-18th-century-florence-picture-id157410781 though there are several differences, like that this one has four feet instead of three. The hand painted decoration is everywhere; look inside the peak and in the feet. The backstamps are two one that could be a Moritz Zdekauer and the Oscar and Edgar Gutherz. The Biedermeier lines makes a great contrast with the elaborated decoration, the floral motive, the gilded motive of the top so similar to Mulhaus school. The Biedermeier porcelain was from the early 19th century, porcelain factories in Germany and Austria began producing a range of wares that were considerably plainer than the grand services ordered by royalty but more sumptuous than the everyday tableware used in the ordinary home. The new styles took a limited yet elegant array of shapes, and were decorated in a fresh and distinctive manner. This was Biedermeier porcelain, and, as the century progressed, it was to be seen increasingly frequently in the homes of the comfortable middle classes. Porcelain of the Biedermeier period represents a simplified version of the neo-classical style, which had dominated European art for half a century. It is characterised by plain outlines, flat surfaces, restrained gilding and elegant decoration, often enclosed in a border or band of colour. The finest Biedermeier porcelain was made in Vienna by the Royal Imperial Porcelain Factory and in Berlin by the Konigliche Porzellan Manufaktur (Royal Porcelain factory) or KPM. Taking the lead from these two great factories, lesser porcelain-making concerns imitated their wares. These smaller factories include those at Furstenberg, Ludwigsburg and Nymphenburg in Bavaria, and Ilmenau and Gera in Thuringia. http://antiques-art-collectibles.com/collectible/ceramics/biedermeier_porcelain.html
It would be great any commentary from cw collectors