Any mayor and board of commissioners of any city and/or any mayor and board of aldermen of any municipality in this state, are hereby authorized and empowered, in their discretion, to donate annually, out of any moneys in the municipal treasury, to be drawn by warrant thereon, a sum not exceeding One Hundred Dollars ($100.00) per million of assessed valuation to the support of a local chapter of the American Red Cross, in said municipality.