281. 240 MM shell, finish turning bourrelet Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: July 30, 1945 Institution: National Archives at Boston
282. 240 MM shell, rough turning with 4 turning and 2 cut-off tools Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 1945 Institution: National Archives at Boston
283. 240 MM shell, showing method of setting tool by indicator for finish turning bourrelet Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: July 30, 1945 Institution: National Archives at Boston
284. 240 MM shell, spray painting Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 1945 Institution: National Archives at Boston
285. 240 MM shell, transfer of rotating band from induction furnace to banding press Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 1945 Institution: National Archives at Boston
286. 2400 Ft-Lb Charpy machine, bldg 71 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
287. 2400 Ft-Lb Charpy Machine, bldg 71 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
288. 2,400,000 lb hydraulic tension-compression testing machine Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
289. 2,400,000 lbs. capacity tension-compression testing machine Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1964] Institution: National Archives at Boston
290. 2,400,000-lb hydraulic tension-compression testing machine Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
291. 2,700.000 capacity cold work fixture, lowering 3" AA liner into container Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office; Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: March 10, 1937 Institution: National Archives at Boston
292. 280 MM Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1950–1959] Institution: National Archives at Boston
293. 280 MM atomic cannon with carrier Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
294. 280 MM gun Atomic Annie Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 22, 1952 Institution: National Archives at Boston
295. 280 MM gun carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 1952 Institution: National Archives at Boston
296. 3" AA assembly line, building 36 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 14, 1937 Institution: National Archives at Boston
297. 3" AA assembly line, building 36 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 14, 1937 Institution: National Archives at Boston
298. 3" AA fuse setter M-5 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: September 15, 1936 Institution: National Archives at Boston
299. 3" AA M2A1 in traveling position Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 14, 1937 Institution: National Archives at Boston
300. 3" AA M2A1 in traveling position Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 14, 1937 Institution: National Archives at Boston