Union artillery officer from Illinois (1827–1909) who served at Vicksburg, Pleasant Hill, Nashville, Fort Blakely, the Red River Campaign, and Meridian. Original 2.25 x 4 oval carte-de-visite photo by an anonymous studio, signed in the lower border in black ink, “R. M. Moore, Col. 117 I.V.I.” In fine condition, with clipped corner tips and a bit of scattered light foxing. RR Auction COA.