Wiener Werkstaette-style malachite goblet

unreadable master/co mark, hallmark Diana, hallmark. office mark G, greyhound head, Austria, early 20th century, heavily gilded silver, 800/1000, gross weight 319.20 g, malachite, deep bell-shaped cluster with lid and malachite handle on smooth bulging leg with malachite applications and crowded dedication to George Karafiat with 1913 anniversary, pile and offset foot with fine hammer decor, height 25 cm