Xu Collection, Upper Volume Radical: Metal (jīn) Kangxi stroke count: 13 Page 1300, Entry 01 Sea of Documents (Pianhai) and Collection of Characters (Zihui) state this is an ancient form of the character for universe (zhòu). However, upon examination of ancient texts, there is no such character. The Sea of Documents is in error, and the Collection of Characters has perpetuated this mistake, which is also incorrect.