Dating to 1957, "Men Mail and Machines" is a film presentation of the new electronic and automatic devices being installed in some of the major post offices of the nation in that era. This film shows the U.S. Postal Service and its efforts to handle the massive volume of mail efficiently. It highlights the challenges faced by the Postal Service due to the high volume of mail and the outdated methods previously used. Postmaster General, Arthur E. Summerfield explains the introduction of modern technologies and systems to improve mail handling, such as automated sorting machines and new vehicles for mail carriers. The film also discusses the need for better working conditions for postal workers and the financial challenges in implementing these improvements. Overall, it emphasizes the importance of modernization to provide better mail service to the public.