Section 39A. The director shall furnish to the treasurer of every county forms for the issue of notes for money borrowed by the county. Every such note shall state the amount thereof, the date of issue, which shall be construed as the date from which interest is payable, the interest which it bears, the date when it will become due, and such other matter as the director may deem necessary; and a record of every such note shall be kept by said treasurer in such form as the director may designate. The director may place upon notes submitted to him for certification such denominations as will show the purpose for which they are issued and as may be required by law to appear thereon.