Url https://edisondigital.rutgers.edu/document/CJ615AFD Resource class dctype:Text Title [CJ615AFD], Letter from Herman E Kiefer to Thomas Alva Edison, September 27th, 1907 Creator Kiefer, Herman E Subject Research and development Metals and minerals Cement Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1907-09-27 Type Letter Identifier CJ615AFD Source 203:386 Rights Thomas Edison National Historical Park Date Created 1907-09-27 Has Version https://archive.org/details/edisonmicrofilm203/page/n396/mode/1up Archive.org Viewer, Microfilm Series Reel 203 Is Part Of CJ615-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/CJ615AFD https://edisondigital.rutgers.edu/document/CJ615AFD --