Home / United States / World War I / Field Gear / 1909 Dated U.S. Army Knife by Rock Island Arsenal 1909 Dated U.S. Army Knife by Rock Island Arsenal$20.00 Approximately 8-1/2 inches long. 1909 Dated U.S. Army Knife by Rock Island Arsenal quantity Add to cart Item Number: 74569 Categories: Field Gear, Pre-WWI