The clerk of the circuit court of each county shall be the official custodian of all records pertaining to outstanding indebtedness of the county, and also of all bonded indebtedness of special road and bridge districts, and shall make a complete record of each issue of such bonds outstanding on June 21, 1929, including all county bonds and special road and bridge district bonds. This record shall contain the information with relation to each issue in a well-bound book, which shall be a public record in the office of the clerk of the circuit court.