I can tell where it was put together from a mold. My house was built in the 40s and its by far the coolest thing I've found. Can't believe I haven't found any silver. Tons of square head nails. Gotta hit last night and about 6" down found a big hunk of metal at least a ft long not sure how deep it goes. Got tired of digging it. Maybe tomorrow ill go out and pull it up. Probably part o a car hood or something