Url https://edisondigital.rutgers.edu/document/CJ615AGU Resource class dctype:Text Title [CJ615AGU], Letter from Herman E Kiefer to William Horatio Mason, December 5th, 1907 Creator Kiefer, Herman E Subject Testing and quality control Rolls and crushers Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1907-12-05 Type Letter Identifier CJ615AGU Source 203:442 Relation Edison, Thomas Alva Rights Thomas Edison National Historical Park Date Created 1907-12-05 Has Version https://archive.org/details/edisonmicrofilm203/page/n452/mode/1up Archive.org Viewer, Microfilm Series Reel 203 Is Part Of CJ615-F Recipient Mason, William Horatio Uri https://edisondigital.rutgers.edu/document/CJ615AGU https://edisondigital.rutgers.edu/document/CJ615AGU --