Url https://edisondigital.rutgers.edu/document/D7719ZAM Resource class dctype:Text Title [D7719ZAM], Letter from Thomas B A David to Thomas Alva Edison, August 21st, 1877 Creator David, Thomas B A Subject Telephone Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1877-08-21 Type Letter Identifier D7719ZAM Source 14:879 Relation Richmond, George B Rights Thomas Edison National Historical Park Date Created 1877-08-21 Has Version https://archive.org/details/edisonmicrofilm14/page/n887/mode/1up Archive.org Viewer, Microfilm Series Reel 14 Is Part Of D7719-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/D7719ZAM https://edisondigital.rutgers.edu/document/D7719ZAM --