Historical clue formulations

• Bar from the bank? — 2025-09-18
• Expensive bar — 2024-01-17
• Block of gold — 2023-05-30
• Bit of gold reserves — 2022-05-22
• Fort Knox block — 2021-10-21
• Valuable bar at Fort Knox — 2019-08-13
• Pricey bar — 2018-09-12
• Gold standard? — 2017-07-25
• Fort Knox valuable — 2015-12-27
• Gold bar — 2014-12-01
• Gold bar — 2013-12-09
• Gold bar — 2012-05-30
• Product of a mold — 2011-07-16
• Expensive bar — 2011-01-16
• Gold brick — 2008-05-12
• Bar of gold — 2007-11-12
• Heavy metal bar — 2007-05-20
• Deposit in a depository — 2007-02-25
• Bullion unit — 2006-11-14
• Something valuable held in reserve — 2006-10-19
• Bullion unit — 2004-01-28
• Block of gold — 2001-09-03
• Fort Knox bar — 2001-03-12
• Precious bar — 2000-05-28
• Fort Knox bar — 1999-06-21
• Fort Knox unit — 1999-01-04
• Gold bar — 1998-09-28
• Iron bar — 1998-07-07
• Bar — 1998-05-01
• Mint bar — 1998-04-26
• Fort Knox unit — 1996-09-10
• Gold bar — 1995-05-23
• Fort Knox deposit — 1994-03-17