Url https://edisondigital.rutgers.edu/document/CJ617ADG Resource class dctype:Text Title [CJ617ADG], Letter from Herman E Kiefer to Thomas Alva Edison, September 14th, 1909 Creator Kiefer, Herman E Subject Metals and minerals Ore exploration and mining Cement Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1909-09-14 Type Letter Identifier CJ617ADG Source 203:678 Relation Alsen's American Portland Cement Works Morris, John, (Edison Associate) Rights Thomas Edison National Historical Park Date Created 1909-09-14 Has Version https://archive.org/details/edisonmicrofilm203/page/n688/mode/1up Archive.org Viewer, Microfilm Series Reel 203 Is Part Of CJ617-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/CJ617ADG https://edisondigital.rutgers.edu/document/CJ617ADG --