Betty Dolitsky was in a booth of the safe deposit room of the Dollar Savings Bank when she discovered a $100 bill in an advertising folder that the bank had placed in the booth. She turned the money over to the bank. A year later after the money had not been claimed by its true owner, Betty asked for it. The bank refused. Betty sued. Who prevails? (Dolitsky v. Dollar Savings Bank, 119 N.Y.S.2d 65)