… Postage or revenue stamps, stamp-postmarks, first-day …
Explanatory notes
… 97.04 ‑ Postage or revenue stamps, stamp‑postmarks, first‑day … used or unused, other than those of heading 49.07 : (A) Postage stamps of all kinds , i.e., the stamps of the kind normally used for affixing to correspondence or postal packages; “postage due” stamps, etc. (B) Revenue stamps of …