Historical clue formulations

• Soft wool source — 2016-09-18
• Quality wool source — 2016-08-20
• Some fine wool — 2016-08-14
• Fine wool — 2007-02-20
• Wool source — 2006-09-28
• Fine sheep's wool — 2006-02-20
• Fine wool — 2001-04-27
• Spanish wool — 1999-09-26
• Fine yarn — 1994-05-29