ALS, one page, 7 x 8.75, White House letterhead, August 12, 1930. Letter to "Mr. Thomas Edison, West Orange, N.J.," in full: "I have your telegram. I wish to thank you and Mrs. Edison sincerely for the kind thought which led you to send it to me." An annotation at the top, in an unknown hand, reads: "Send to Mina at Home." In very good to fine condition, with overall toning and a few light spots of foxing. President Hoover had turned 56 two days earlier, and evidently is replying to a birthday telegram from his friend, the greatest American inventor of his generation. The two had become friends after meeting each other at the dedication of the Edison Institute (also known as The Henry Ford Museum and Greenfield Village) in Dearborn, Michigan on October 21, 1929.Format: ALS