Lapidary Technology Through the Ages: Laps and Polish ...
They continued to cut stones like this until the 1870s when Bohemian technology came to Germany and IdarOberstein adopted the handcranked machine technology similar to the rest of Europe. The Sandstone Cutting Millstone and Wooden Polishing Wheel of IdarOberstein. Photos by Justin K Prim. Industrial Revolution. The coming of the French Revolution and the Industrial Revolution brought a lot ...