| Answer | Crossword Clue |
|---|---|
| briefs | an official letter or mandate |
| franking | An official mark or signature on a letter or parcel to indicate that postage has been paid or does not need to be paid |
| postmark | An official mark stamped on a letter or other postal package, giving the place, date, and time of posting, and serving to cancel the postage stamp |
| postmarks | An official mark stamped on a letter or other postal package, giving the place, date, and time of posting, and serving to cancel the postage stamp |
| lettre | a letter bearing an official seal and usually authorizing imprisonment without trial of a named person |
| missives | A letter, esp. a long or official one |
