Historical clue formulations

• Bishop's headwear — 2025-01-03
• Bishop's hat — 2021-09-06
• Bishop's headgear — 2021-08-29
• Bishop's hat — 2021-05-09
• Bishop's headdress — 2018-05-01
• Bishop's headgear — 2018-04-08
• Kind of saw in a workshop — 2012-06-25
• Kind of saw — 2012-05-09
• Corner joint — 2011-12-04
• Bishop's topper — 2007-03-28
• High hat — 2007-03-04
• Join, in woodworking — 2004-07-26
• Top of the Catholic Church? — 2003-11-01
• High hat — 2003-01-02
• Oblique surface in carpentry — 2002-11-12
• Kind of box — 2002-11-02
• Cut corners? — 2001-08-17
• Kind of joint — 2001-04-05
• Papal hat — 1999-09-26
• Kind of joint — 1999-07-11
• High hat — 1999-06-18