Okla. Stat. tit. 2, § 75
The authority for the county excise boards in counties comprising the free district fair associations shall be by special election of the resident tax payers in the various counties to whom shall be submitted the questions: "Shall the county commissioners appropriate any sum of money, not to exceed one (1) mill on the total assessed valuation of their counties for each current year for premiums on agricultural and horticultural products and on purebred livestock and poultry, at the free district fair?"
Laws 1923, c. 125, p. 206, § 5