Url https://edisondigital.rutgers.edu/document/CJ621AAI Resource class dctype:Text Title [CJ621AAI], Letter from William Horatio Mason to Thomas Alva Edison, February 15th, 1912 Creator Mason, William Horatio Subject Competition and market structure Cement Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1912-02-15 Type Letter Identifier CJ621AAI Source 204:385 Relation Baker and Adamson Chemical Co Kiefer, Herman E Rights Thomas Edison National Historical Park Date Created 1912-02-15 Has Version https://archive.org/details/edisonmicrofilm204/page/n394/mode/1up Archive.org Viewer, Microfilm Series Reel 204 Is Part Of CJ621-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/CJ621AAI https://edisondigital.rutgers.edu/document/CJ621AAI --