… revenue stamps, stamp-postmarks, first-day covers, postal stationery (stamped paper), and the like, used or unused, …
Explanatory notes
… revenue stamps, stamp‑postmarks, first‑day covers, postal stationery (stamped paper), and the like, used or unused, … paper) , i.e., franked envelopes, letter‑cards, postcards, newspaper wrappers, etc. The articles of this heading may be …