This a World War I United States Army pattern bayonet made by Springfield Arsenal 1906. It has a rawhide and steel inner scabbard with a workable release button that is lockable into the sheath body. It has wooden grips secured with steel screw pin. The blade length is=40.5 cm. The overall length=52 cm. The length in the sheath=55 cm. The serial number is 188968. It is in excellent condition overall.