261. Rodman gun during testing at Ft. Monroe, Virginia Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1977] Institution: National Archives at Boston
262. Sample of first American armor Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: March 1943 Institution: National Archives at Boston
263. Saturn assembly fixture Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 17, 1962 Institution: National Archives at Boston
264. Saturn assembly fixture Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 17, 1962 Institution: National Archives at Boston
265. Second Gordon D.C. Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 1913 Institution: National Archives at Boston
266. Second Gordon D.C. Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 1913 Institution: National Archives at Boston
267. Sergeant Guided Missile Launcher XM-97 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
268. Side frames for 16" BC Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
269. Side frames for 16" BC Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
270. Side view of transfer car as seen after accident Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: March 5, 1942 Institution: National Archives at Boston
271. Single tier loading of transfer car Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 14, 1942 Institution: National Archives at Boston
272. Skysweeper Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1962] Institution: National Archives at Boston
273. Skysweeper anti-aircraft gun Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1977] Institution: National Archives at Boston
274. Sliding railway mount 2 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
275. Slotter machine Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: September 25, 1922 Institution: National Archives at Boston
276. Student officer 9.5 shop Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 6, 1922 Institution: National Archives at Boston
277. Student officer 9.5 shop Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 5, 1922 Institution: National Archives at Boston
278. Student officer 9.5 shop Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 10, 1922 Institution: National Archives at Boston
279. Student officer 9.5 shop Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 5, 1922 Institution: National Archives at Boston
280. Student officer 9.5 shop Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 5, 1922 Institution: National Archives at Boston