That finish isn't really a true "as ground". Once upon a time it was known as a glaze finish, and a lot of knives were produced this way. Its done with an emery wheel, not unlike the process of polishing, but using large grit to produce a coarser finish with tiny parallel lines. Higher end knives back in the day had glaze on the pile side and a crocus polish with etching on the mark side while lower end knives were glazed on both sides.