Last seen in:
- New York Times - Sep 4 2023
- New York Times - Jun 15 2022
- The Washington Post Sunday - Jan 2 2022
- The Telegraph - QUICK CROSSWORD NO: 28,892 - Nov 9 2018
- L.A. Times Daily - May 12 2018
- The Washington Post - May 12 2018
- The Washington Post Sunday - Jan 28 2018
- L.A. Times Daily - Jun 20 2014
- L.A. Times Daily - Apr 6 2013
- Premier Sunday - King Feature Syndicate - Jul 17 2011
Related Clues:
- Most seldom seen
- Most off-the-wall
- Least likely
- Hardest to come by
- Like a numismatist's greatest treasure
- Most like a collectible
- Most in the raw
- Least conventional
- Most likely to cause goose flesh
- Least expected
- Most strange
- Most difficult to find
- Least plentiful
- Most uncommon
- Superlatively collectible