I don't know much about Asian antiques. This appears to be pewter with brass inlay with an ornate 2 dragons motif. I can't find any maker marks or period stamps. It weighs 2 lbs. 6 oz. And is 11 5/8" in diameter and 1 1/8" deep. This item is being sold as found, would most likely clean up very nicely. Numerous scratches on bottom a few on face of plate. See photos and ask questions for more details.