The State Treasurer of the State of Oklahoma shall receive and accept any surplus funds or moneys offered for deposit with him by an official voucher drawn by any city treasurer of any city of the State of Oklahoma. Said Treasurer in accepting said funds shall act as a depository for the same. Said funds so deposited may be withdrawn by an official transfer voucher on drafts drawn against said account by the city treasurer depositing same, said drafts to be countersigned by the city clerk of said city, and any interest earned by said deposit shall be credited to said account. Said withdrawal voucher or draft must be made payable only to the city or town treasurer drawing same.