I was mildly surprised to see what is certainly a cavalry trooper bearing what looks a lot like a three-point two-edge, albeit with extended edges. There was a fair amount of warfare at the end of the Five Dynasties Ten Kingdoms period around 900-950 CE. The Song or Sung Dynasty was powerful but not preeminent from 960 to 1279. I am not sure yet if these troops were contemporaries from the Jin Dynasty, Southern Song or Northern Song.