Wiener WerkstättE Arts and Crafts Silver, Gold, Malachite and Lapis Brooch The rectangular silver frame edged by small balls, centering an openwork floral motif of polished gold leaves and silver stems, highlighted by one oval malachite ap. 20.6 x 11.6 mm., flanked by four half-moon shaped gold flowers atop slender silver stems and 2 square lapis ap. 11.5 x 11.1 mm., with maker's marks for the Wiener Werkstätte (Vienna Workshop), Josef Hoffman and Karl Ponocny, circa 1907. Similar models illustrated on cover and inside pages in the book Wiener Werkstatte Jewelry, Hatje Cantz, Neue Galerie. C Property from an Important Jewel Collector