Appears to be thin lead rolled into a tapered end.
Eye hole at narrow end.
Any educated guess on the date?
I've pulled a half dozen mid 1700s coins and a shoe buckle in the same 75 yds square.
I agree with nothing else to go by but the coins found near, that would be the best guess .. I'm wondering if it might be an old clock weight .. mid 1700 fishing was done a bit different than hook and sinker.