Karl Wilhelm Roßkopf & Alois Jacob Gerz, Höhr-Grenzhausen Beer mug, Art Nouveau
gray porcelain stoneware, white coating on the inside, around 1903, marked on the base with the manufacturer's mark, model number 437, gesetzlich geschützt, tankard "Prosit", half liter, slightly conical shape, relief decoration growing out of the handle, laid out in cobalt blue and brown, in a cartouche ending with the motto PROSIT, mounted tin lid in floral Art Nouveau style, very good age-appropriate condition, h. 25.5 cm