Url https://edisondigital.rutgers.edu/document/LM205800 Resource class dctype:Text Title [LM205800], Letter from William S Perry to Thomas Alva Edison, April 4th, 1892 Creator Perry, William S Subject Ore concentrate Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1892-04-04 Type Letter Identifier LM205800 Source 152:865 Rights Thomas Edison National Historical Park Date Created 1892-04-04 Has Version https://archive.org/details/edisonmicrofilm152/page/n874/mode/1up Archive.org Viewer, Microfilm Series Reel 152 Is Part Of LM205-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/LM205800 https://edisondigital.rutgers.edu/document/LM205800 --