Here is a key , almost 6 inches long I found in the ground at a very old historic house site. The house is still used and has been over the years a hotel, general store, bakery and other things. There is a ball room upstairs etc. Digging with permission exposing the the round portion, at first I thought i had found an old tent stake in the ground and almost left it there, but I couldnt get over the green patina so dug further. I hope it is authentic, perhaps Blue Dunbar could shed some light on this. The front doors to the place are very large, probably 7 or 8 feet tall. I think it was built in 1790. Oddly I found no old coins even after searching the basements dirt floor. Thanks for looking CO