Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Perle de France No. 5 Manufacturer: Type: Rollers-2 Country: France Patent: Comment: This sharpener is unique in that it sharpens single edged wedge blades. The mechanical gearing is designed to sharpen one side of the blade and then the other. The blade holder is spring loaded in the top to allow it to flex tightly against the roller. Source: twillard Editors: