This is a protective amulet made and worn by H'mong (also known as the Miao) tribal people. Silver jewellery like this is still made in the local village for local people to buy.
The amulet can be easily strung onto a piece of string (in the authentic way!) or you could attach to a silver chain.
From the Golden Triangle area of northern Thailand.
Made from silver (at least 925 standard)
Size 6 cms. wide by 2.5 cms.