Url https://edisondigital.rutgers.edu/document/Z100EW Resource class dctype:Text Title [Z100EW], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 1st, 1874 Creator Fischer, Henry, (British Telegraph Service) Subject Testing and quality control Multiple telegraphy (duplex, quadruplex) Automatic telegraphy Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1874-05-01 Type Letter Identifier Z100EW Relation Gouraud, George Edward Edison, Thomas Alva Wheatstone, Charles Rights BT Archives Date Created 1874-05-01 Is Part Of Z100-F Recipient Scudamore, Frank Ives Uri https://edisondigital.rutgers.edu/document/Z100EW https://edisondigital.rutgers.edu/document/Z100EW --