… Unused postage, revenue or similar stamps of current or new issue in the country in which they have, or …
Explanatory notes
… 49.07 ‑ Unused postage, revenue or similar stamps of current or new issue in the country in which they have, or … printed on paper, usually gummed, in various designs and colours, and bear printed indications of their value and … for receipts or certificates). “Postage due” stamps for surcharging understamped letters, etc., are also included. …