Url https://edisondigital.rutgers.edu/document/CJ615AEE Resource class dctype:Text Title [CJ615AEE], Letter from William Horatio Mason to Thomas Alva Edison, August 12th, 1907 Creator Mason, William Horatio Subject Testing and quality control Rolls and crushers Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1907-08-12 Type Letter Identifier CJ615AEE Source 203:351 Rights Thomas Edison National Historical Park Date Created 1907-08-12 Has Version https://archive.org/details/edisonmicrofilm203/page/n361/mode/1up Archive.org Viewer, Microfilm Series Reel 203 Is Part Of CJ615-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/CJ615AEE https://edisondigital.rutgers.edu/document/CJ615AEE --