Union general and onetime commander of the Army of the Potomac; his distinctive whiskers were dubbed 'sideburns' in his honor. Fountain pen signature, 'Yours truly, A. E. Burnside, Providence,' on an off-white 4.5 x 4.5 slip, dated September 29, 1873, and affixed to a slightly larger page. In fine condition, with a light spot to each corner from adhesive on reverse. RRAuction COA.
