Historical clue formulations

• Padlocked fasteners — 2025-12-12
• Padlock parts — 2024-06-30
• Padlock holders — 2017-09-08
• Padlocks lock them — 2015-08-23
• Features of some diaries — 2011-04-22
• Hinged fasteners — 2010-01-24
• Barn door features — 2007-06-23
• Padlocked fasteners — 2006-06-05
• Door holders — 2003-03-10
• Padlocks lock them — 2000-11-19
• Padlock parts — 1998-11-13
• Door fasteners — 1996-04-03
• Hinged fasteners — 1995-09-05
• Diary protectors — 1995-08-25