Original Item: Only One Available. This is a lovely example of a ground dug Federal 12pdr cannonball that would have been used with the Bormann time fuse during the American Civil War. This cannonball is completely inert and is without any explosive content and is in compliance under the current BATF guidelines on inert ordnance. Not Available For Export.

Civil War cannonball built to fit a smooth bore cannon and with remnants of thread to insert a  ''Bormann Time Fuze''. This cannonball, a 12-pound Shrapnel Shell, had a distance of about 1,200 feet and was used by the Union army throughout the Civil War. The fuze, invented around 1852, would cause a timed burst of the lead balls after the cannon was fired, unleashing the shrapnel contained within the shell. Cannonball weighs approximately 12 pounds and has a 4.5'' diameter and 14.25'' circumference. This example was ground dug at the battlefield of Chickamauga, Tennessee. This was what we were told, and we have no physical provenance to back this up.

The Bormann fuse is named after its inventor, Belgian Army Captain Charles G. Bormann.  The Bormann time fuze was employed by the United Stated Ordnance Department as early as 1852. The time fuze is contained in a tin and lead disk. This disk had time markings indicated in seconds and quarter-seconds graduated up to 5 1/4 seconds. The artillerist used a metal punch to pierce the thin metal at the desired time marking. This exposed a section in the horseshoe-shaped horizontal mealed powder train, which is covered by a thin sheet of tin. When the cannon discharged, the flame from the explosion ignited this powder train. It would burn in a uniform rate in both directions, but one end would terminate in a dead-end just beyond the 5 1/4 second mark (Confederate copies are 5 1/2 seconds).

The other end would continue to burn past the zero-mark, where it would travel through a channel to a small powder booster or magazine. This powder then exploded, sending the flame through a hole in the fuze underplug to the powder chamber of the projectile. The purpose of the brass or iron fuze underplug was to form a solid base of support for the soft metal fuze, which could have easily been damaged during firing.

The Battle of Chickamauga, fought on September 18–20, 1863, between the United States Army and Confederate forces in the American Civil War, marked the end of a U.S. Army offensive, the Chickamauga Campaign, in southeastern Tennessee and northwestern Georgia. It was the first major battle of the war fought in Georgia, the most significant US defeat in the Western Theater, and involved the second-highest number of casualties after the Battle of Gettysburg.

The battle was fought between the US Army Army of the Cumberland under Maj. Gen. William Rosecrans and the Confederate Army of Tennessee under Gen. Braxton Bragg, and was named for Chickamauga Creek. The West Chickamauga Creek meanders near and forms the southeast boundary of the battle area and the park in northwest Georgia. (The South Chickamauga ultimately flows into the Tennessee River about 3.5 miles (5.6 km) northeast of downtown Chattanooga).

After his successful Tullahoma Campaign, Rosecrans renewed the offensive, aiming to force the Confederates out of Chattanooga. In early September, Rosecrans consolidated his forces scattered in Tennessee and Georgia and forced Bragg's army out of Chattanooga, heading south. The Union troops followed it and brushed with it at Davis's Cross Roads. Bragg was determined to reoccupy Chattanooga and decided to meet a part of Rosecrans's army, defeat it, and then move back into the city. On September 17 he headed north, intending to attack the isolated XXI Corps. As Bragg marched north on September 18, his cavalry and infantry fought with Union cavalry and mounted infantry, which were armed with Spencer repeating rifles. The two armies fought at Alexander's Bridge and Reed's Bridge, as the Confederates tried to cross the West Chickamauga Creek.

Fighting began in earnest on the morning of September 19. Bragg's men strongly assaulted but could not break the US line. The next day, Bragg resumed his assault. In late morning, Rosecrans was misinformed that he had a gap in his line. In moving units to shore up the supposed gap, Rosecrans accidentally created an actual gap directly in the path of an eight-brigade assault on a narrow front by Confederate Lt. Gen. James Longstreet, whose corps had been detached from the Army of Northern Virginia. In the resulting rout, Longstreet's attack drove one-third of the U.S. army, including Rosecrans himself, from the field.

U.S. Army units spontaneously rallied to create a defensive line on Horseshoe Ridge ("Snodgrass Hill"), forming a new right wing for the line of Maj. Gen. George H. Thomas, who assumed overall command of remaining forces. Although the Confederates launched costly and determined assaults, Thomas and his men held until twilight. Union forces then retired to Chattanooga while the Confederates occupied the surrounding heights, besieging the city.