755. THOMAS A. EDISON A.L.S. "E" 3pp. 8vo., on brown lined notepaper in pencil, [n.p. but West Orange], [n.d. but docketed at top right 1923], to Jaffrey Buchanan, manager of the Record Division. He writes, in part: "...I learn that our wood flour bought from German is being mixed in with the American wood flour & since that we have several hundred discards from pull out. They have found wheat & other things mixed with it. Years ago we screened our wood flour but somebody removed this...Cannot we put in a screen somewhere to screen the wood flour before putting in the mixed with the screen...". Lightly toned at edges, overall very good. $400 - 500