If at the time appointed for the sale the state tax collector deems it expedient and for the interest of all persons concerned therein to postpone the sale of any property or properties for want of purchasers, or for other sufficient cause, the state tax collector may postpone the sale from time to time, until the sale is completed, giving notice of every adjournment by a public declaration thereof at the time and place last appointed for the sale; provided that the sale of any property may be abandoned at the time first appointed or any adjourned date, if no proper bid is received sufficient to satisfy the lien, together with all interest, penalties, costs, expenses, and charges.