Military officer (1834-1889) who fought in the Civil War and against Native Americans in the West, but is best known for failing to come to Custer's aid during the Battle of Little Bighorn. Ink signature, "M. A. Reno,” on an off-white 1.75 x .25 slip affixed to a slightly larger sheet. In fine condition. Encapsulated in a PSA/DNA authentication holder.