… Postage or revenue stamps, stamp-postmarks, first-day covers, postal stationery (stamped paper), and the like, …
Explanatory notes
… 97.04 ‑ Postage or revenue stamps, stamp‑postmarks, first‑day covers, postal stationery (stamped paper), and the like, … stamps stuck on envelopes or cards , including “ first‑day covers ”, which are envelopes, usually marked … newspaper wrappers, etc. The articles of this heading may be presented in bulk (separate stamps, date‑stamped …