681. 313 training section Creator: U.S. Army Materials and Mechanics Research Center. Public Affairs Office Format: Photographs Collection: Watertown Arsenal Photographs Date: April 9, 1968 Institution: National Archives at Boston
682. 34 year old floor mill machining 3" AA bogie Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 22, 1938 Institution: National Archives at Boston
683. 37 M/M AA elevated 45 degrees Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 21, 1937 Institution: National Archives at Boston
684. 37 M/M AA elevated 90 degrees Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 21, 1937 Institution: National Archives at Boston
685. 37 M/M AA in traveling position Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 21, 1937 Institution: National Archives at Boston
686. 37 M/M in firing position Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: January 21, 1937 Institution: National Archives at Boston
687. 4 Brown hoist boom failure Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: September 12, 1920 Institution: National Archives at Boston
688. 4-spindle hydrotel vertical automatic hydaulic operated machine for milling, regular contours Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1942–1959] Institution: National Archives at Boston
689. 500 lb vacuum furnace Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: [ca. 1959–1962] Institution: National Archives at Boston
690. 500 lb vacuum furnace Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 8, 1960 Institution: National Archives at Boston
691. 6" BC 2 M1910 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: June 23, 1913 Institution: National Archives at Boston
692. 6" BC 2 M1910 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: June 23, 1913 Institution: National Archives at Boston
693. 6" BC 2 M1910 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: June 23, 1913 Institution: National Archives at Boston
694. 6" BC M1910 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: April 15, 1915 Institution: National Archives at Boston
695. 6" BC M1910 Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: June 22, 1915 Institution: National Archives at Boston
696. 6" D.C. firing pistol Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: July 1908 Institution: National Archives at Boston
697. 6" D.C. firing pistol Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: July 1908 Institution: National Archives at Boston
698. 6" D.C. firing pistol Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: July 1908 Institution: National Archives at Boston
699. 6" DC gun Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 1, 1913 Institution: National Archives at Boston
700. 6" DC gun Creator: Watertown Arsenal (Mass.) Format: Photographs Collection: Watertown Arsenal Photographs Date: December 1, 1913 Institution: National Archives at Boston