Notes
This is another crenelated Jade(Nephrite) plaque from the Hongshan Culture.Smaller,with two pairs of teeth.Note that there are scientifically excavated examples of this type, which means that at that time ~ 5000 years ago,the technology was there to produce thin slices of such a tough and hard material (Nephrite) and then artistically shaped it into this beautiful double sided design flat plaque.