The VTG OPEN BARREL SKELETON KEY is a collectible item made of brass, originating from the United States. This unique skeleton key is designed with a police K 1183 alarm call box and is likely a piece of history from a specific manufacturer such as Gammell. Perfect for collectors of vintage keys or those with an interest in unique and rare lock-related items, this piece showcases a classic design and craftsmanship from a bygone era.2 5/8 INCH