5941. Working model of MacIntosh-Seymour Marine Steam Engine made by Watertown Arsenal Apprentice School Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [1946] Institution: National Archives at Boston
5942. Working model of MacIntosh-Seymour Marine Steam Engine made by Watertown Arsenal Apprentice School Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [1946] Institution: National Archives at Boston
5943. Wrecking building 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
5944. Wrecking building 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
5945. XM198 high strength aluminum bottom carriage 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
5946. XM289 launcher, total production lead time 11 months Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1955] Institution: National Archives at Boston
5947. XR-5 litter installation Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 22, 1944 Institution: National Archives at Boston
5948. XR-6 litter capsule installation, preparation with passenger Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 22, 1944 Institution: National Archives at Boston
5949. XR-6A float gear & handling dolly Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: March 20, 1945 Institution: National Archives at Boston
5950. X-ray in bldg. 45 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1939–1959] Institution: National Archives at Boston
5951. X-ray in bldg. 45 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1939–1959] Institution: National Archives at Boston
5952. X-ray laboratory Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 11, 1922 Institution: National Archives at Boston
5953. X-ray laboratory Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 10, 1922 Institution: National Archives at Boston
5954. X-ray laboratory Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 11, 1922 Institution: National Archives at Boston
5955. Yard 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
