Sklarna Nizbor Interior, Picture 7, Nizbor, Bohemia (CZ), 2008

The grinders used in detailing the products supposedly look more dangerous than they are. This was one of two rows of such machines in a medium-sized room, much like what you might have seen 100-150 years ago in almost any type of factory, although there weren't any overhead driveshafts or belts in this room that I noticed.