BOPP
Set to 2 different clues across 2 published puzzles, most often “Hale-___ (comet seen in 1997)” — The New York Times, Sunday, 13 July 2008.
4 letters
Every clue on record, most used first
- Hale-___ (comet seen in 1997)once
The New York Times — Sunday, 13 July 2008
- Hale-___ cometonce
The New York Times — Sunday, 4 May 2003