Son of Abraham Lincoln, and secretary of war under Garfield and Arthur. TLS signed 'Robert T. Lincoln,' one page, 6.5 x 7.25, personal letterhead, April 18, 1910. Lincoln sends thanks for portraits of his father. In part, 'Many thanks for...enclosing four portraits of my father. Two of them, I think are entirely new to me, but all are quite interesting.' In fine condition. RRAuction COA.
