The board of county commissioners of any county, to which the provisions of K.S.A. 2-129 apply, having a population of more than fourteen thousand (14,000) and not more than seventeen thousand (17,000) and having an assessed valuation of more than fifty million dollars ($50,000,000) may make an annual tax levy upon all of the assessed taxable tangible valuation of such county for fair purposes and to pay a portion of the principal and interest on bonds issued under the authority of K.S.A. 12-1774 , and amendments thereto, by cities located in the county but such tax shall not exceed a rate of one-half (½) mill.
This act is supplemental to the provisions of K.S.A. 2-129 .