Historical clue formulations

• Gold stds. — 2022-08-24
• Gold units: Abbr. — 2022-01-15
• Gold standards: Abbr. — 2019-10-17
• Jewelers' purity measures: Abbr. — 2016-09-14
• Some chess pieces: Abbr. — 2016-01-22
• Some chessmen: Abbr. — 2014-11-08
• They often land next to queens: Abbr. — 2014-03-29
• Gold units: Abbr. — 2014-03-13
• Gold units: Abbr. — 2013-07-07
• Gold units: Abbr. — 2012-10-07
• They may sit next to castles: Abbr. — 2012-08-04
• Gold meas. — 2011-10-15
• Pawn jumpers: Abbr. — 2010-12-16
• Gold stds. — 2010-01-14
• 24 of them = 100%: Abbr. — 2009-03-22
• Gold meas. — 2008-10-08
• Measures of gold purity: Abbr. — 2008-06-04
• Some chess pieces: Abbr. — 2007-05-24
• Gold units: Abbr. — 2006-09-17
• Figures from 1 to 24: Abbr. — 2006-05-13
• Gold units: Abbr. — 2005-11-27
• Chess pcs. — 1996-04-14