Scientific American 1904-08-27.jpg ThumbnailsThumbnailsThumbnailsThumbnailsThumbnails
Twelve-inch 42-calibre gun on disappearing mount. Weight of gun, 131,500 pounds. From the War Department's exhibit at St. Louis Fair (1904 World Exposition).



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner