ANS signed “Edison,” one page, lightly-lined, 5 x 8, 1921. Edison writes to [Jaffrey P.] Buchanan, manager of his record disc division. In full: “I want 3 booths in machines 21 made sound proof like those up plains & with ventilation - Do it as soon as possible. Driscoll can do it if you were to tell him what to do. Hurry it.” Light overall toning, and scattered light soiling, otherwise fine condition. RRAuction COA.