Russian-born aviator and aeronautical engineer (1894–1974), manufacturer of pursuit planes, and inventor of various airplane devices including a bombsight. TLS, one page, 7.25 x 10.5, personal letterhead, July 18, 1944. Letter to Louis B. Mayer of MGM, transmitting letter from Air Force Surgeon General David Grant and Art Landa. In part: “The General’s unpleasant experience is most distressing for all of us. He is not only a high-ranking officer but, more important, an officer with an unusual record of achievement and integrity. I know that you are an innocent bystander and will be as disturbed as I am…Whoever in your outfit is assigned to handle contacts with the armed forces really ought to show more tact and discrimination.” A couple areas of toning and a few pencil office notations to the top, otherwise fine condition. RRAuction COA.