This Gold Seal with the inscription "Tai Zi" has horizontal and vertical borders. The style of the calligraphy is very similar to stone carvings in the Qin Dynasty, the carvings are very delicate. The knob is carved into the shape of a turtle that tiptoed on top of a hole that holds silk ribbon. "Tai Zi" literally means the crown prince. This seal is an evidence to show that the Nanyue feudal state imitates the Qin dynasty to appoint the crown prince when the king is still alive, to make the succession of throne clear and undisputed.