Url https://edisondigital.rutgers.edu/document/E1949AG Resource class dctype:Text Title [E1949AG], Letter from Thomas Alva Edison to National Tin Corp, Alexander Roys, September 30th, 1919 Creator Edison, Thomas Alva Subject Ore milling and separation Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1919-09-30 Type Letter Identifier E1949AG Source 272:816 Relation Engineering and Mining Journal Rights Thomas Edison National Historical Park Date Created 1919-09-30 Has Version https://archive.org/details/edisonmicrofilm272/page/n826/mode/1up Archive.org Viewer, Microfilm Series Reel 272 Is Part Of E1949-F Recipient National Tin Corp Roys, Alexander Uri https://edisondigital.rutgers.edu/document/E1949AG https://edisondigital.rutgers.edu/document/E1949AG --