David Andersen Sterling Enamel Butterfly Brooch Vintage Pin

Beautiful vintage David Andersen gold washed sterling silver and enamel butterfly brooch. Translucent enamel over a textured background in vivid shades of blue, light green, and orange with black. He's marked on back "David-Andersen Norway Sterling 925S" and is in nice vintage condition with just some tarnish, mostly on back. I don't see any problems with the enamel.