| Answer | Crossword Clue |
|---|---|
| PPD | Stamp not reqd. |
| ECARD | Greeting not needing a stamp |
| unstamped | Not having a postage stamp affixed |
| RARE | Not found in many stamp collections, say |
| unfranked | not franked esp of a postage stamp |
| definitive | (of a postage stamp) For general use and typically of standard design, not special or commemorative |
