I found a name plate Anderson & Harris Carriage Company , Elmwood Place , OH. (6 inches down) About ten feet or so there was harness piece it looks like (also 6 inches down). In the area I have found eighteen Indian cents so far,this is over 10 acre. We have found barrel rings about eighteen inches down. I have been unable to find info on the name plate. Does anyone have info on this? Thank you for any help.