5 Zhu With right rim

The Sui dynasty's early coinage is among the more administratively fraught in Chinese numismatic history. When Emperor Wen unified the fragmented northern and southern kingdoms after 581, he inherited a monetary system polluted by centuries of debased, clipped, and privately cast cash coins. His early 5 zhu issues attempted to restore weight standards, but inconsistent provincial casting meant quality varied considerably across mints.

The "right rim" designation distinguishes this type by the orientation of a casting fin remnant or specific rim treatment — a detail that matters to specialists sorting Sui transitional issues, where minor die and mold distinctions are the primary tools for sequencing an otherwise sparsely documented series.