Historical clue formulations

• Toothed — 2012-11-04
• Saw-toothed — 2007-11-05
• Saw-edged — 2007-01-28
• Notched — 1999-09-11
• Notched — 1999-03-19
• Saw-toothed — 1998-01-13
• Notched — 1997-04-25
• Put teeth into — 1995-03-12