Url https://edisondigital.rutgers.edu/document/D7826ZAA Resource class dctype:Text Title [D7826ZAA], Letter from Charles H Graef to Thomas Alva Edison, March 23rd, 1878 Creator Graef, Charles H Subject Purchases Cellulose, resins, rubber, and related products Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1878-03-23 Type Letter Identifier D7826ZAA Source 18:441 Rights Thomas Edison National Historical Park Date Created 1878-03-23 Has Version https://archive.org/details/edisonmicrofilm18/page/n449/mode/1up Archive.org Viewer, Microfilm Series Reel 18 Is Part Of D7826-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/D7826ZAA https://edisondigital.rutgers.edu/document/D7826ZAA --