The City Clerk shall perform for the City the same duties devolving under the law of this State upon town clerks, except insofar as the same are changed or modified by the provisions of this act; the Clerk shall be the ex officio Clerk of the Board of Aldermen, Board of Civil Authority, Board for the Abatement of Taxes, Board of Finance, Board of Public Health, and of the Board of Highway Commissioners. The City Clerk may be City Purchasing Agent. He or she shall have exclusive charge and custody of the public records of the City and of all records, papers, and documents belonging to the Town of Rutland at the time the City of Rutland was organized. He or she shall receive the same fees as do town clerks under the State law, but his or her salary as set by the Board of Aldermen shall be in lieu of all fees, and all fees received by the City Clerk shall be accounted for, and paid into the City Treasury.