In anticipation of the collections of current revenues in any fiscal year, the City may borrow money and issue certificates of indebtedness therefor, signed as municipal bonds are signed, but no such loans shall be made to exceed the amount estimated to be actually received from taxes or other current revenues, for such fiscal year, after deducting all advances. The sum so anticipated shall be deemed appropriated for the payment of such certificates at maturity. The certificates shall not run for a longer period than six months nor bear a greater rate of interest than is permitted under the laws of the State of Ohio, and shall not be sold for less than the par value thereof with accrued interest. (Amended 11-7-72.)