A Trio of Items Comprising a Swiss Allegro Model L Razor Sharpener with Original Box and Instructions

This lot comprises a vintage Swiss-made Allegro Model L mechanical razor blade sharpener and stropper, its original red leatherette-covered presentation box, and a printed instruction sheet. The sharpening device is manufactured from chrome-finished metal and features an internal diagonal sharpening element. It is marked Allegro, Mod L, and Made in Switzerland – Fabrique en Suisse. The base plate displays multiple international patent numbers, including British Patent 495006 and United States Patents 1862457, 1868431, and 2119264, alongside serial number 3058040 and the maker Allegro S.A. Lucerne-Suisse. The instruction manual identifies the manufacturer’s factory in Emmenbrucke, Switzerland, and a Paris address at 80, Avenue d’Iena. It provides technical diagrams for sharpening different blade standards such as Standard E and Standard DD.