401. 16" DC carriage M 1917 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 31, 1920 Institution: National Archives at Boston
402. 16" DC carriage M 1917 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 31, 1920 Institution: National Archives at Boston
403. 16" DC carriage M 1917 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 28, 1920 Institution: National Archives at Boston
404. 16" DC carriage shop Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 18, 1920 Institution: National Archives at Boston
405. 16" DC during construction Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: 1919 Institution: National Archives at Boston
406. 16" DC model 1917 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1917] Institution: National Archives at Boston
407. 16" DC parts Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: 1919 Institution: National Archives at Boston
408. 16" DC parts Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: 1919 Institution: National Archives at Boston
409. 16" How. cradle boring and turning trunnions Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
410. 16" How. cradle finishing faces for elev. and range disc racks Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
411. 16" Howitzer BC M 1920 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 4, 1922 Institution: National Archives at Boston
412. 16" Howitzer BC M 1920 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 4, 1922 Institution: National Archives at Boston
413. 16" Howitzer boring cradle trunnion bearing in side frame Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 8, 1921 Institution: National Archives at Boston
414. 16" Howitzer carriage, caradle, bore for recoil, recuperator and pull rods Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
415. 16" Howitzer carriage, cradle, bore liners and cut keyway Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
416. 16" Howitzer locking hoop being quenched, weight 32,500 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
417. 16" Howitzer M1920 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: November 7, 1921 Institution: National Archives at Boston
418. 16" Seacoast 1918 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1908–1926] Institution: National Archives at Boston
419. 200 KV x-ray equipment Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1939–1959] Institution: National Archives at Boston
420. 240 MM shell, finish turning base in preparation for base cover Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 1945 Institution: National Archives at Boston
