CGS
Set to 2 different clues across 2 published puzzles, most often “Like a system of scientific meas.” — The New York Times, Thursday, 18 March 1999.
3 letters
Every clue on record, most used first
- Like a system of scientific meas.once
The New York Times — Thursday, 18 March 1999
- Light wts.once
The New York Times — Saturday, 12 October 1996