US Military Bayonet, possibly Utica Cutlery Company. Overall length, in scabbard: 21 inches Sword Length: 20 inches Blade Length: 15.5 Added Photos https://photos.app.goo.gl/HMD4bXgXW7nHNy7t9 Compared to other Bayonets seen online, our is rustic and plain. Does that help with dating? Note the plain wooden handle with no stylish grips. Note the spring-loaded bayonet button at the top of the grip. Also, includes a plain scabbard of wood construction. Additional questions: Best way to clean blade?
Overall length, in scabbard: 21 inches Sword Length: 20 inches Blade Length: 15.5