Xu Collection, Upper Volume Radical: Metal (jīn) 13 strokes Page 1300, Entry 07 According to the Sea of Characters (Pianhai) and the Collection of Characters (Zihui), this is an ancient form of the character for universe (zhòu). Note: This character does not exist in ancient texts; the Sea of Characters is mistaken, and the Collection of Characters has perpetuated this error, which is also incorrect.