221. Beryllium laboratory, experimental heat treatment 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
222. Beryllium laboratory, experimental heat treatment 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
223. Beryllium laboratory, grinding 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
224. Beryllium laboratory, lathe turning 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
225. Beryllium laboratory, milling 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
226. Beryllium laboratory, milling 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
227. Beryllium laboratory, surface cutting 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
228. Beryllium laboratory, tensile machine 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
229. Beryllium laboratory, zone melting 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
230. Bessemer converter Format: Photographs Collection: Stereograph Collection Date: (c) 1905 Institution: Boston Public Library
231. Between Press and Dryers, Machine Room, Bay State Mill, early 1950s Format: Photographs Collection: Photo Collection Date: 1950–1953 Institution: Crane Museum of Papermaking
232. Between Press and Dryers, machine room, Bay State Mill, early 1950s Format: Photographs Collection: Photo Collection Date: 1950–1953 Institution: Crane Museum of Papermaking
233. Bike Tire Bead Maker Creator: Burson-Marsteller Associates Format: Photographs Collection: Boston Herald-Traveler Photo Morgue Date: [ca. October 1956] Institution: Boston Public Library
234. Bldg. 311 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: 1918 Institution: National Archives at Boston
235. Bldg. 311, planer Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: 1918 Institution: National Archives at Boston
236. Bldg. 64 sub station, air compressor in foreground Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: October 1939 Institution: National Archives at Boston
237. Bob Costa Format: Photographs Collection: Natick Soldier Systems Center Photographic Collection Date: January 1983 Institution: U.S. Army Natick Soldier Systems Center
238. The boiler room in the power plant Format: Prints Collection: Stereograph Collection Date: [ca. 1893–1920] Institution: Boston Public Library
239. Boot manufacturing Format: Photographs Collection: Natick Soldier Systems Center Photographic Collection Date: 1979 Institution: U.S. Army Natick Soldier Systems Center
240. Boot manufacturing Format: Photographs Collection: Natick Soldier Systems Center Photographic Collection Date: 1979 Institution: U.S. Army Natick Soldier Systems Center