David Andersen multicoloured silver gilt enamel butterfly brooch 1960s

A solid silver gilt sky blue, purple, lime green, orange enamel butterfly brooch consisting of a large sized butterfly motif with a pointed wing and radiating guilloche pattern beneath bright multicoloured enamel with black details and edges with a rollover clasp to the pin at the back and overall gilt finish - marked for David Andersen of Oslo - total weight 10.5grms - overall dimensions 54 x 30mm - c.1960 Norway