Url https://edisondigital.rutgers.edu/document/LB031102 Resource class dctype:Text Title [LB031102], Letter from Thomas Alva Edison to Charles E Speirs, June 27th, 1889 Creator Edison, Thomas Alva Subject Ore exploration and mining Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1889-06-27 Type Letter Identifier LB031102 Source 139:440 Rights Thomas Edison National Historical Park Date Created 1889-06-27 Has Version https://archive.org/details/edisonmicrofilm139/page/n449/mode/1up Archive.org Viewer, Microfilm Series Reel 139 Is Part Of LB031-F Recipient Speirs, Charles E Uri https://edisondigital.rutgers.edu/document/LB031102 https://edisondigital.rutgers.edu/document/LB031102 --