10 ILCS 5/24-5

The local authorities may for the purpose of paying for such voting machines issue bonds, certificates of indebtedness, or other obligations, which shall be a charge on the city, village, incorporated town, county or other governmental taxing division. Such bonds, certificates or other obligations may be issued with or without interest, payable at such time or times as the authorities may determine, but shall not be issued or sold at less than par.