Where an apparent owner of property subject to this subpart is known, and the estimated value of the property exceeds $200, the owner shall be notified by certified mail at his last known address. The written notice shall describe the property and the procedure for filing a claim for its return (see, §§230.36 and 230.39). Such claims must be filed within 30 days from the date the written notice is postmarked. If the apparent owner of the property fails to file a timely claim, the property is considered abandoned and must be disposed of as provided in §230.38.