CSA #11-ADa, 10¢ light blue approaching milky shade tied MACON / GA. double circle cancel on homemade cover to “Capt. H. A. Troutman, Care of Major W. Vance Thompson, Montgomery, Ala”, bit of top back flap missing. There are two H. A. Troutman listings in military records, both from Georgia and could well be the same person although both shown at privates. A simple Google search shows Capt. H. A. Troutman in the Macon Light Artillery – formerly Napier Artillery (sometimes Google is better than the official records!) Slaten's Company, Georgia Artillery (Macon Light Artillery) history included.