Historical clue formulations

• Quickly maturing security, for short — 2022-04-03
• It matures quickly, in brief — 2022-02-20
• Govt.-backed investment — 2020-03-22
• One maturing quickly, informally — 2019-07-26
• Very low-risk investment, familiarly — 2017-05-04
• Single-price auction purchase, informally — 2015-02-13
• Govt. security — 2014-07-27
• Govt. security — 2012-10-04
• Govt. instrument — 2010-06-20
• Security that matures in a year or less, briefly — 2010-03-11
• One maturing quickly, for short — 2009-11-14
• Govt. note — 2006-03-27
• Govt. security — 2004-09-21
• Govt. security — 2004-08-15
• Govt. debt instrument — 2002-12-05
• Certain investment, briefly — 2001-11-23
• Govt. promissory note — 1998-09-10
• Govt. security — 1997-12-16