AIRMAIL
Set to 2 different clues across 2 published puzzles, most often “Kind of stamp” — The New York Times, Sunday, 26 March 1995.
7 letters
Every clue on record, most used first
- Kind of stamponce
The New York Times — Sunday, 26 March 1995
- Skywriting?once
The New York Times — Friday, 18 March 1994