Season 24 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #4 of 13 in Season 24•+0.2 vs season avg
Wooden cases, soundboards, strings, keys and intricate action mechanisms are assembled and regulated to create upright pianos. Fabric is printed or sewn into flags; motors, filters and collection tanks are combined in wet/dry vacuums; and forged steel axe heads are hardened, sharpened and mounted on

Lynne Adams
Narrator (voice)
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"Upright Pianos, Flags, Wet/Dry Vacuums, Medieval Axes" is episode 3 of How It's Made season 24. It scored 7.5/10 from 19 votes, ranking #4 of 13 episodes this season (season average 7.3). It aired on October 9, 2014.