Union general; he was awarded the Congressional Medal of Honor for his famed 20th Maine regiment's victory at Little Round Top. Fountain pen signature, 'I have the honor to be very respectfully, Your Obdt. servt., J. L. Chamberlain, Brig. Genl. Cmdg,' on an off-white lined slip, clipped from the closing of a letter. Matted with a portrait of Chamberlain in uniform, to an overall size of 14 x 11. In fine condition. RRAuction COA.