Confederacy, 1863, 20¢ green, "20" on forehead. Without gum, ample to large margins, strong color, unobtrusive natural carbon inclusion speck that certificate states as a small stain, otherwise Very Fine, one of the rarest and most striking varieties on any Confederate general issue, with only six examples known; with 1999 P.S.E. certificate. Scott No. 13  $3,000. $0 (Image)