My daughter found this hidden in laundry room

Outside the beltway
Mike I've restored old Mussel Loaders. The oldest 1711 French flint lock. It came into the shop with patch ball. It probable had been in the gun over a hundred years.
I did another early 1800s FL that had a patched ball. It's not unusual to find a ball in these old guns. I have one I didn't shoot after turkey season with a turkey load in it. I removed the hammer .