I was digging up a part of my lawn this afternoon (see the sage project) when I turned over a hunk of sod and a small rusted iron ball fell out.
The ball is just a little bit bigger than a chocolate malted milk ball, and was found next to a fragment of a square-headed nail (also seen in this photograph). The place where the ball was found was about three feet away from, and a foot downhill from, an old driveway made of gravel and cinders leading to a horse barn. The old driveway has long since grown over with grass, and my house itself was built in stages beginning in about 1840.
I can’t think what this old iron ball hiding two inches under the grass behind my house might have been made for. The only possibility I can think of is that it’s some kind industrial ball bearing – but what kind of machine would use a ball bearing of this size, and what would have brought it so close to a house?