item asin439
price £42
stamped - Siam Sterling
This is a fairly typical Siam silver brooch using a  Niello style decoration.  This is where the silver is dipped into acid to turn it a black, and then a a pattern is etched into the surface.
 This brooch has images of two dancing girls or goddesses.  The outer edge has an open work design. Measures  3.7x3.1cm