Historical clue formulations

• Gear parts — 2026-02-04
• Minor machine parts — 2025-11-10
• Machine workers? — 2025-07-11
• Small parts of a big organization, in an idiom — 2025-03-24
• Unimportant workers, metaphorically — 2023-07-15
• Peons, metaphorically — 2022-06-23
• Parts of a machine — 2022-05-22
• Bits of machinery — 2022-04-03
• They turn on machines — 2020-11-19
• They go around in circles — 2020-09-19
• Teeth not connected to jaws — 2019-02-14
• Teeth — 2018-04-20
• Gear parts — 2017-01-25
• Gear teeth — 2015-12-28
• Gear parts — 2015-04-12
• Some working parts — 2014-05-31
• Teeth — 2014-04-17
• Mechanical teeth — 2011-05-16
• Gear teeth — 2009-03-09
• Lowly workers — 2008-04-20
• Unimportant workers — 2006-05-31
• Gear teeth — 2004-08-03
• Industrial revolution elements? — 2003-06-13
• Gear teeth — 2000-05-08
• Teeth — 1999-11-04