| Answer | Crossword Clue |
|---|---|
| RFD | Initials on some mail. |
| APO | Initials on some mail. |
| APO | Initials on army mail |
| APO | Initials on Army mail. |
| USAF | Initials on some jets |
| DPL | Initials on some license plates |
| ADA | Initials on some toothpaste tubes |
| NES | Initials on some video games |
| FIRSTCLASSSTAMP | Thing on some mail |
| APO | Abbr. on some mail |
| POSTAGEDUE | Stamp on some mail |
| FIRSTCLASSSTAMP | It's stuck on some mail |
| AEREO | Word stamped on some mail from Mexico |
