181. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
182. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
183. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
184. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
185. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: July 26, 1920 Institution: National Archives at Boston
186. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
187. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
188. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
189. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
190. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
191. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
192. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
193. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
194. 16" Barbette carriage Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
195. 16" Barbette carriage, boring recoil band Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 29, 1921 Institution: National Archives at Boston
196. 16" Barbette carriage, boring, turning, facing distance ring Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 5, 1921 Institution: National Archives at Boston
197. 16" Barbette carriage, cutting teeth in elevating rack Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 29, 1921 Institution: National Archives at Boston
198. 16" Barbette carriage, drilling for traversing roller bearings Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: June 6, 1921 Institution: National Archives at Boston
199. 16" Barbette carriage, machining racer Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1920] Institution: National Archives at Boston
200. 16" Barbette carriage, mounting cradle in side frames Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: May 4, 1921 Institution: National Archives at Boston
