Doubleday (1819–1893), credited with the invention of modern baseball, was also the Union general who reportedly aimed the first shot at the Confederates in the defense of Fort Sumter. Attractive ink signature, “Abner Doubleday, Bvt. Major General, U.S. Army,” on an off-white 6 x 3.5 album page. In fine condition, with mild toning and a few small, unobtrusive spots, one touching signature. COA Steve Grad/PSA/DNA and R&R COA. Featured collection item.