Found with tesoro detector,every one showed to said it was a mini camera but one smart member said clean it after posting on tesoro forum.Turned out to have small valve seat in front section.It is so small you could carry in pocket with room to go.This thing is built strong,tough,machine work unreal,can tell it got hot!.Well is it a lantern,micro stove,micro torch,or do you light it to take a picture?I know it could not be smelter,did find small musket balls in same area,there is no way it could be that old,colonial period could not have that technology.There is no product name ,number,nothing i see,no writing,seems something built this good you would at least put a name on it!.Thanks for any help on what this is and date it was made.