NSF
3 letters
Historical clue formulations
- Grad. student fellowship funder — 2025-04-04
- Abbr. on a returned check — 2020-07-14
- Bank stamp abbr. — 2019-08-01
- Agcy. that funds major research — 2016-09-22
- Cause of a bank fee, briefly — 2012-11-16
- Univ. research grantor — 2011-03-25
- Univ. research grantor — 2007-07-06
- Bounced check letters — 2005-03-13
- Retd. check notation — 2000-06-07
- Fed. grant giver — 1999-06-27
- Univ. grant source — 1997-09-07
