Url https://edisondigital.rutgers.edu/document/LB075214 Resource class dctype:Text Title [LB075214], Letter from Thomas Alva Edison to William Simpkin, December 24th, 1906 Creator Edison, Thomas Alva Subject Manufacturing Testing and quality control Cement Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1906-12-24 Type Letter Identifier LB075214 Source 197:665 Relation Dunderland Iron Ore Co Ltd Edison Cement Works (Stewartsville) Rights Thomas Edison National Historical Park Date Created 1906-12-24 Has Version https://archive.org/details/edisonmicrofilm197/page/n674/mode/1up Archive.org Viewer, Microfilm Series Reel 197 Is Part Of LB075-F Recipient Simpkin, William Uri https://edisondigital.rutgers.edu/document/LB075214 https://edisondigital.rutgers.edu/document/LB075214 --