ink rubbing of Mao Huijian's copy of the famous Yubei tablet attributed to the legendary ruler Yu (founder of the Xia Dynasty 1989 BC) with interpretation/translation, colophon dated 1666. Stone engraving is located in the temple of Confucius in Xi'an (Shaanxi). The fanciful characters are a variant form of chongshu-tadpole script and are believed to be of mystical/Taoist origin. Mao Huijian's interpretation includes each large character is in kaishu-standard script;