We left it outside on a shelf by our back door until yesterday. I brought it in and cleaned it up.
We think it's a dagger hilt. Made of lead, as it's rather heavy, it's had some kind of coating at one time. It seems to be quite ornate and also has green "glass" embedded in the middle of it.
Emerald?
Probably glass...............
Any information, gratefully received.
In the mean time it sits in the fireplace along with the cannon ball.