Url https://edisondigital.rutgers.edu/document/D8946ABQ Resource class dctype:Text Title [D8946ABQ], Letter from William Joseph Hammer to Edison Lamp Co, Francis Robbins Upton, May 22nd, 1889 Creator Hammer, William Joseph Subject Expositions, demonstrations, lectures Cylinder phonograph Cylinder recordings Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1889-05-22 Type Letter Identifier D8946ABQ Source 126:903 Relation Dredge, James Dyer, Philip Sidney Rights Thomas Edison National Historical Park Date Created 1889-05-22 Has Version https://archive.org/details/edisonmicrofilm126/page/n912/mode/1up Archive.org Viewer, Microfilm Series Reel 126 Is Part Of D8946-F Recipient Edison Lamp Co Upton, Francis Robbins Uri https://edisondigital.rutgers.edu/document/D8946ABQ https://edisondigital.rutgers.edu/document/D8946ABQ --