Confederacy, Charleston, S.C./Mar. 5, 1862, double circle postmark with matching handstamped "PAID 5" in circle on cover to Surg[eo]n Wm Wylie, 17th Regt S.C.V., John's Island, So Ca; reduced top and bottom and a bit edge worn but nice markings, manuscript "On Official Business" at top left, stain at center, Fine, Detailed bio included from the unpublished biographical register of physicians who served the Confederacy in a medical capacity. (no photo). Estimate  $50 - 75. $0