Armin Trosser Coffee Mill or Grinder

The Armin Trosser Mill was manufactured in Germany and I would date it to around 1950's. It is in very good clean c ondition. But I have only cleaned the exterior of this mill as the pain on the bolts that hold the body together would chip if I were to take it apart. It has a plastic top and a porcelain hopper witha windmill scene. There are no chips or cracks in the hopper or catch cup and only minor tarnish on the handle.