Section 21 Works of art, collectors pieces and antiques 97 Works of art, collectors pieces and antiques 97 04 Postage or revenue stamps, stamp-postmarks, first-day covers, postal stationery (stamped paper), and the like, used or unused, other than those of heading 4907 Commodity Code Description 97 04 00 Postage or revenue stamps, stamp-postmarks, first- day covers, postal stationery (stamped paper), and the like, used or unused, other than those of heading 49.07.
