(3)Such officer shall make in the presence of witnesses an inventory of all movable property seized under the warrant, and shall give not less than ten days previous notice of the sale, and of the time and place thereof, by beat of drum, in the municipality or ward in which the property is situated, and by serving on the defaulter a notice in the prescribed form:Provided that, if the property is of a perishable nature, it may be sold at once with the consent of the defaulter, or without such consent, at any time after the expiry of six hours from the seizure.