I don't have it in front of me to double check but I am almost positive it was cracked at the bend. As if it was straight at one time then it was bent it cracked on the outer side of the curve. You can see it in the pic. I should of pointed that out.
Thought it looked like a crack but wasnt sure...so if it was straight at one time could be tip for bellows...we do alot of cellar hole hunting in my area and we seem to find alot of the old homes had burnt down as we dig alot of ashes around some of them..imagine some poor guy bellowing up the fire and accidently blowing hot coals all over..sure its happened...course back then you were out of luck..no much in the way of fire departments.Neat find if it is for bellows.