The Antique DIAMOND KING Razor Hone by Norvell-Shapleigh Hardware from St. Louis is a collectible shaving accessory measuring 5 1/2". Made in the United States, this high-quality razor hone was used for sharpening and straightening razor blades to ensure a smooth and precise shave. Perfect for vintage shaving enthusiasts or collectors of unique and antique grooming tools, this piece exudes a sense of nostalgia and craftsmanship from a bygone era.!! Excellent condition for its age also.