The wedge type sabot goes on the 3.67" so called "Selma" shells fired from a Blakely rifle. The cloverleaf sabot went on "Selma" shells of many sizes, but Ken and Kerry have proved they weren't made at Selma. This one was for a 3.8" rifle. Both these guns were in Redoubt #4 at Fort Blakely. Ken owns the Skates gun that fired the 3.8in Selma cloverleaf type sabotted shells. I own the muzzle tip of the Blakely rifle that was next to it. A shell blew up as it was leaving the muzzle and cost the end of the gun to break off. In the records, the Confederates said this, but the Union troops claimed to have hit the gun. The piece was found well in front of the redoubt (toward the Union lines) and so must've been the result of a shell blowing up just as it exited the barrel.
These guns were used in other areas, including a different type of 3.67in Blakely used in South Carolina near Columbia, but we got some of the shells and sabots from the large collection we bought down there several years ago.