Scarce and desirable ALS, one page, 5.25 x 8, NASA letterhead, no date. Armstrong responds to a request for information. In full: “The dates of my 7 X-15 flights can be obtained from: Mr. Ralph Jackson, NASA, Box 273, Edwards, Calif. Sincere thanks for sending the photos.” The X-15 was a rocket plane test-piloted by Armstrong before he began astronaut training in 1962. In very fine condition. R&R COA.
