Confederacy, (Forwarded) Charleston S.C. Dec 23, cds ties 20¢ green (13) horizontal pair, damaged, on 1864 blue legal size cover to Columbia S.C., likely overpaid as forwarded to Abbeville S.C. with 10¢ blue (12) horizontal pair, four margins, tied by indistinct blue Columbia S.C. cds, Fine, This is the only recorded Charleston usage with such an unusual combination of stamps. Estimate  $300 - 400. $0 (Image)