Mid 1800's. But, here's what I see. The hole shows wear, I think it was used a lot in it's day. The steel bands are hand forged, and uneven, and show appropriate age if it had been laying in the corner of a barn for 150 years. I don't believe it was ever buried. Some of those tension inserts are newer I think. A partial restore or repair, but I think it's mostly authentic. Very cool. Of course, that rawhide cord is new.