4381. Helmets and their developmental sequence Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office; Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1963–1967] Institution: National Archives at Boston
4382. HLH undercarriage Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office; Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1967–1984] Institution: National Archives at Boston
4383. Howell 10" disappearing carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 1913 Institution: National Archives at Boston
4384. Howell disappearing carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 1913 Institution: National Archives at Boston
4385. Improved bonding of copper rotating bands to titanium artillery shells Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1980–1984] Institution: National Archives at Boston
4386. J. Belsen Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
4387. J. Belsen Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
4388. J. L. Martin Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
4389. J. P. Trayer Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: August 12, 1953 Institution: National Archives at Boston
4390. James Canty Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: September 3, 1953 Institution: National Archives at Boston
4391. Joe Talbot Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: September 3, 1953 Institution: National Archives at Boston
4392. Jonny Appleseed, he planted ideas Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
4393. Joseph Sullivan Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: September 3, 1953 Institution: National Archives at Boston
4394. Knots Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
4395. Krupp 12 pr. balloon gun on transportable platform Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 1914 Institution: National Archives at Boston
4396. Krupp siege howitzer Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 1914 Institution: National Archives at Boston
4397. Krupp siege howitzer Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 1914 Institution: National Archives at Boston
4398. L. Hegge Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
4399. L. Hegge Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
4400. Letter to Mr. James M. Braffit from Major General Paul W. Baade Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 20, 1945 Institution: National Archives at Boston