In any city, in any country, go to any construction site or foundry you can get yourself to. When you reach the front desk, ask to visit someone who calls himself "The Holder of Twins". A person will suddenly appear beside you and the worker will be gone. Ask the person the same thing, but the answer will be that the worker is currently away, talking to his boss. He will tell you that both of you will have to wait until the worker comes back. The reflection is Object 60 of 538. Don't ever dare to destroy it.