American Civil War era Minié (or Minni) ball bullet, used in muzzle-loaded rifled muskets. The bullet is made of lead and was originally conical in shape but has since been completely deformed, the entire front has been smashed and melted down leaving one side mostly flat and creating a protrusion coming out from one side; the base is more intact, with the characteristic tri-ring pattern still prominent and visible, but the ridge around the hollow recess at the bottom of the bullet has been smashed in on one side, creating an almost crescent shaped base as well as slightly warping the tri-rings. There is some white corrosion (lead carbonate) as well as some rust-colored residue present on the surface of the bullet as well as inside the hollow recess, these are considered to be a normal sign of age.