Printed pamphlet, 5.75 x 9, eight pages, a transcript of Hoover’s October 19, 1941, radio address entitled, “Can Europe’s Children be Saved?,” signed on the front in black ink. Accompanied by a hardcover copy of his book, Principles of Mining. In fine condition, with a bisecting horizontal fold, and a bit of scattered mild toning and handling wear. Auction LOA John Reznikoff/PSA/DNA and RRAuction COA.