Historical clue formulations

• $2 coin, eh? — 2026-06-18
• Canadian coin featuring a polar bear, informally — 2026-02-08
• Coin with a polar bear on its reverse, informally — 2023-03-11
• Canadian $2 coin, informally — 2017-11-01
• Nickname for the $2 Canadian coin — 2014-03-12
• Bimetallic Canadian coin — 2013-06-30
• It's worth a couple of bucks in Canada — 2010-10-08