Rock island 1919 bayonet with it's original ww 1 finish evident by the line and light color on the ricasso (pictures 5 & 6). This is from my personal collection and will be hard to upgrade.I just wanted to add that the small spot shown on picture 3 is only visible from the side view. Looking straight on the blade it is not visible. The item "EX + to Mint WW 1,1905 RIA 1919 Bayonet Original Walnut Grips Original Finish" is in sale since Thursday, January 3, 2019.
This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\United States\Edged Weapons". The seller is "dave307" and is located in Marquette, Michigan. This item can be shipped to United States.