For the purpose of meeting the cost of such building or monument or parks, any such city may levy, within the limits permitted by law, amounts sufficient to cover the cost of such building or monument, or parks, but any such sums so levied shall be separately levied, and when collected, shall be paid into a special separate fund and used only for the purpose of paying for the cost of such building or monument or parks.
Minn. Stat. § 416.02
(1933-10 1/2) 1923 c 325 s 2; 1973 c 123 art 5 s 7