US lawCaliforniaStatutesCode hscDivision 6Part 1Chapter 6Article 46683Cal. HSC § 6683Cal. HSC § 6683Last amended: 1939Year: 2025Length: 23 wordsOfficial source After the exchange the old bonds shall be canceled by punching holes in the signatures, and shall be retained by the county treasurer.PreviousCal. HSC § 6682