… covers, postal stationery (stamped paper), and the like, used or unused, other than those of heading 49.07. …
Explanatory notes
… covers, postal stationery (stamped paper), and the like, used or unused, other than those of heading 49.07. This heading … , including “ first‑day covers ”, which are envelopes, usually marked “first‑day”, bearing a postage stamp (or a …