Historical clue formulations

• Signature hats for Indiana Jones — 2024-04-15
• Headwear for Indiana Jones — 2023-09-07
• Gangsters' wear, in old movies — 2017-09-14
• Hats for Indiana Jones — 2015-03-18
• Blues Brothers wear — 2014-03-23
• Felt toppers — 2012-12-25
• Fops' tops — 2009-05-10
• Zoot suit hats — 2006-03-26
• Gangster film accessories — 2003-01-11