Letter from Daniel Unger to Isaac Leeser;September 20, 1853Letter from Daniel Unger to Isaac Leeser, written in Mobile, Alabama on September 20, 1853. Unger requests Leeser to publish an enclosed article in the next issue of his periodical and asks for an invoice. He assures Leeser that he is prepared to prove the truthfulness of his statements against Dr. Eckman and requests the return of Eckman's letter if publication is refused.