Art Deco Brooch Enamel on Bubble Background

Offered is an interesting Art Deco enamel brooch. The design features purple and rosy brown translucent enamels over a textured bubble background.  Opaque gray and white decorate the additional spike like triangles.  This is unmarked as to maker or metal content.  It was tested, and has a low silver content consistent with being silver plated.  The needle is not silver.

The oval shaped pin measures 1 3/8″ x 1″ across the widest points. The jewelry has no condition issues.