Union general called the Hero of Fort Sumter; he refused Confederate demands to surrender the fort and utimately endured two days of bombardment before finally submitting. Fountain pen signature, “Respectfully, Robert Anderson, Brig. Gen. USA,” on a lightly lined slip cut from a longer letter 3.25 x 1.5 . In fine condition, with faint edge toning from a few small areas of adhesive residue on the reverse. R&R COA.