Confederacy, Columbia, S.C., 1861, 5¢ blue, Seal on Back. Clear blue "Paid 5" (type IIF) with matching "Columbia, S.C./Jul 15 " cds on cover to Glenn Springs, S.C., seal on right side flap, open on three sides to display seal, fresh and Very Fine. Scott No. 18XU4a  Estimate $500 - 750. $0 (Image)