CLASSIC STERLING GEORG JENSEN BUTTERFLY BROOCH: The ''Butterfly'' brooch has become a classic among Arno Malinowski's designs. This brooch is design no 283 and is 2.25'' in diameter. It has the correct marks - Georg Jensen, 925S Denmark 283. He worked at the Georg Jensen Silver smiths from 1936-1944 and from 1949-65 and was inspired by Japanese art for many of his designs.