This Silver Niello Pin shows Thepanon Guardian angel. It measures approx. 1 1/2" by 2" and is in very good condition. It is marked Siam Sterling on the back. Niello is a technique of copper, silver, and lead sulphides used as an inlay on engraved or etched metals. Most of it was completely hand made. Nielloware jewelery and related items from Siam (Thailand) were popular gifts from american soldiers taking R and R to their wife or girlfriend back home from 1930-1970's. Tourists bring home souvenirs and gifts from extend vacations and trips abroad during this period. Siam jewelery is very collectable because of the wide variety of items, variety of subjects and the mystic of the country. Please feel free to contact me if you have any questions. Thank you for shopping with us at Something Wonderful.