This is where a dark amalgam of lead, copper and silver metals is rubbed into etched silver. The craft was first introduced to the south from India, and then spread to the north. Nielloware is used to decorate trays, betel boxes, vases, and other small objects

http://www.thailandmuseum.com/thaim useum_eng/bangkok/exhibition7.htm

DECORATIVE ARTS (No. N2 Downstairs)
This gallery exhibits examples of the minor arts from the Bangkok period. They include lacquer ware, ceramics, nielloware, silver works of art, mother of pearl inlay and illustrated manuscripts

Nielloware is on outstanding artisticThai handicraft. There are threeTypes-silver nielloware, goldNielloware and gold encrustedNie