That hereafter when personal property shall be sold under execution issued out of any justice court [magistrate court], or from the district court, when the property seized under execution does not exceed three hundred dollars, ($300.00), notice of such sale may be given by posting written or printed notices of such sale at least ten days prior to the date of sale in at least five public places in the county, one of which places shall be at the courthouse in said county, and one at the place where said sale is to be held.