American Civil War era Williams "Cleaner" bullet, type III, use in .58 caliber rifle muskets. Bullet is made of lead with a zinc and hardened lead "plug" made up of a pin and single zinc disc attached at the bottom; the overall shape is shorter than other bullets from the same time period and the tip is completely rounded with a small raised circle at the very top; this bullet is distinguishable from the other two types of "Cleaner" bullets both because of its uniquely rounded shape and the presence of only two grooved rings around the base were types I and II have three. The Object is covered in a white corrosion (lead carbonate), this is most frequently caused by long-term exposure to carbon dioxide and is considered to be a normal sign of age in lead objects.