Sterling silver made in Siam bangle Bracelet

Vintage made in Siam sterling silver bangle
Stamped sterling 925 made in Siam

piece of niello silver from Siam (now Thailand), likely dating from the mid-20th century. Niello is a black enamel-like substance, typically a mixture of silver, copper, lead, and sulfur, used to create contrasting designs on metal, often silver. In Thai niello ware, the designs frequently depict figures and scenes from the Ramakien, the Thai version of the Sanskrit epic Ramayana.
The piece in the image likely portrays a character or scene from this epic, characterized by ornate details and traditional attire. Niello silver from Siam became popular after World War II and through the 1970s, often featuring intricate depictions of gods, goddesses, and scenes from the Ramakien. These pieces are recognizable for their detailed illustrations and high silver content, usually ranging from 95% to 99.9% purity.