This is the M. 1855-style worm, which attached to the ramrod for cleaning out the bore and for pulling bullets that got stuck in the barrel. I need to check if this is .58 or .69 caliber. I am pretty sure it's a .58.

The condition is pristine and this appears to be unused. It is original and not a reproduction.

All firearms sold are pre-1898 and historic collectibles. They are not meant to be fired. Jim Stanley & Associates (cwartifax.com) will not be liable for injury incurred due to any weapon or artifact purchased from this site. All artillery projectiles sold by Jim Stanley & Associates are absolutely safe and have been professionally and safely de-activated.