Historical clue formulations

• Ranges — 2017-04-29
• Places for pilots — 2016-09-23
• Kitchen centerpieces — 2013-09-30
• Heat sources — 2010-11-19
• Hotpoint products — 2009-10-05
• Places for pilots — 2004-01-10
• Ranges — 2001-09-20
• Potbellies — 2001-04-29
• Hot spots — 1995-11-07