Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Pollux Large Model with Metal Case Manufacturer: Type: Rollers-2 Country: Germany Patent: Germany DRP - 384007(1/19/1923), 412676(4/28/1925); France - 557277(8/6/1923) Comment: Whetstones are raised and lowered within the leather cylinders using slide levers found underneath the cylinders. Marked D.R.Patent and D.R.G.M. Source: twillard Editors: