Could be a tapered planchet. There should be some missing design elements. Maybe the O in ONE on the reverse is that missing element. You have the coin in hand, google tapered planchet and see if it matches what you see.
It could be a tapered planchet or thin planchet. Make sure your scales are zeroed out. It looks to be well struck. It has the weak "O" of one which is a common weak spot for the wheat cents.