Check the listing for details. Vtg Allegro Model Made In Switzerland. Condition: Used. Listed at 45.00 USD. The product is a vintage Allegro model sharpener made in Switzerland. This collectible item is designed for shaving and is part of a vanity or perfume and shaving set. Its Swiss craftsmanship adds to its appeal for collectors of high-quality grooming tools. The Allegro model sharpener is a unique and stylish addition to any collection of vintage shaving accessories.