Historical clue formulations

• Danish money — 2026-03-20
• Coin of Denmark — 2023-12-18
• Danish coin — 2021-08-11
• Danish coin — 2019-10-13
• Norwegian money — 2018-07-29
• Scandinavian coin with a hole in it — 2015-09-18
• Coin with a hole in it — 2014-08-01
• European coin with a hole in it — 2013-02-03
• Coin with a hole in it — 2010-11-05
• Coin with the monogram of King Harald V — 2010-09-11
• 100 öre — 2007-01-26
• Danish money — 2005-05-02
• 10 marks, once — 2004-07-02
• Monetary unit being replaced by the euro — 1998-10-17
• Danish money — 1996-12-24
• 100 ore — 1996-01-20
• Jockey Julie — 1993-12-10