ALLOY
| Date | Clue |
|---|---|
| 2023-04-09 | Rose gold, e.g. |
| 2020-05-02 | Bronze, e.g. |
| 2019-09-29 | Alnico or chromel |
| 2019-08-28 | Alnico, e.g. |
| 2019-03-07 | Combine |
| 2018-05-16 | Bronze, but not silver or gold |
| 2016-12-25 | Cupronickel, e.g. |
| 2015-07-22 | Brass or bronze |
| 2013-06-14 | Many a filling material |
| 2013-04-13 | Dental gold, e.g. |
| 2012-07-25 | Amalgam, e.g. |
| 2011-07-10 | Bronze, e.g. |
| 2009-02-05 | Amalgam, e.g. |
| 2008-10-19 | Cast iron, e.g. |
| 2004-07-09 | Fusion |
| 2004-04-28 | Metallurgist's creation |
| 2004-04-27 | Brass or pewter |
| 2002-11-03 | Cast iron, e.g. |
| 2002-06-02 | Mix |
| 2002-01-19 | Fusion |
| 2001-02-26 | Pewter or brass |
| 1999-05-04 | Amalgam |
| 1998-03-08 | Mix, in a way |
| 1998-01-25 | Cupronickel, e.g. |
| 1998-01-07 | Brass or bronze |
| 1997-07-12 | Solder, e.g. |
| 1995-11-21 | Fusible metal |