Historical clue formulations

• Prized violins, for short — 2024-07-28
• Valuable violins, for short — 2021-07-29
• Cremona treasures, familiarly — 2017-11-18
• Valuable violins, for short — 2015-03-12
• Cremona collectibles, for short — 2008-03-12
• Cremona collectibles — 2006-05-26
• Precious strings — 2002-12-29
• Precious violins — 1995-06-26
• Valuable strings — 1993-12-05