"Super Quality Niello Silver Siam Bangle. As the piece is marked Siam Sterling, it would indicate that it was made pre 1949. Nielloware jewellery were popular gifts from American soldiers taking \"R&R\" in Thailand to their girlfriends/wives back home from the 1930s to the 1970s. Most of it was completely handmade jewellery. The technique is as follows: The artisan would carve a particular character or pattern into the silver, leaving the figure raised by carving out the \"background\". He…