How Do They Do It?

Parma Ham, Rowing Machines, London Underground Signs

S15 E10    Dec 8, 2017    22m    TV-G
How is Parma ham, the most famous ham in the world, made? Plus, how do they make rowing machines, and how are the iconic London Underground signs made?
Where to Watch Parma Ham, Rowing Machines, London Underground Signs
Cast of Parma Ham, Rowing Machines, London Underground Signs
  • Jeff WilburnNarrator
 
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