Typescript document with cover letter from Transatlantic, a Berlin press agent. In this document Zuelzer claims priority in the discovery of a preparation able to reduce blood sugar in humans. He explains that his anti-diabetic agent 'acomatol' the first pancreatic extract and that he had used it successfully in 1908. Acomatol was granted United States patent no. 1,027,790 on May 28, 1912.