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Old 09-29-2016, 09:38 AM
Turble Turble is offline
Join Date: Dec 2007
Location: Eastern PA
Posts: 2,066
I'd go with paper making. High quality rag paper makers still use stamp mills, kind of an automated mortar and pestle to smash rags to release the fibers.

Early models were powered by water wheels. There was a lot of trouble when the Hollander beater was invented, a machine that used knife-like blades to cut the fiber rather than smash it ... people were afraid of being put out of work by automation and resorted to industrial sabotage, raiding the new factories and smashing the new machines ... happened around 1680.