[ Autographs ] Abner Doubleday 1819-1893 Union major general said to have fired Fort Sumter's first shot, and led the lst Corps at Gettysburg after Reynold's death. Signed endorsement removed from a document, 2in x 1.5in in full: "Very respectfully, Your obdt. servt A Doubleday Lieut. Colonel 17 U.S. Infantry Bvt. Brig. General U.S. Arm[y]' Text a bit closely-cut, far from signature itself. Very good.E500-750