Hello, you are offerding on 1rare Civil WarCanister Shotfrom an exploded Artillery Canister.These have a diameter of about 1\". Canister shot was placed in acanister and packed in using pitchandsulphur... In the middle of thecanister standwould be the black powder bursting charge that would explode sending the canister shot flying inall directions.Please see reconstructed canister to see how these were utilized (of course this is for representation only). These were all dugjust North of Atlanta in the Kennesaw Mountain areaout ofUnion Positions. I have included photos ofthe Historical Marker so you could see the general area that we dug these.I don\'t havemany left.It takes 10 to make a stack. Please see my other sales for more great authentic Civil War Relics. Winning buyer to add $4.00 shipping.