Confederacy, (Color Cancels) Chester C.H., S.C./Jul. 18, 1863. Green double circle postmark tying 1863-64 10¢ blue on cover to Columbia, S.C., Very Fine and choice, a rare color cancel, Green cancellations are quite scarce with only 28 Post Offices using green ink. (Pictured in Monroe Book, pg. 85). Scott No. 12  Estimate $200 - 300. $0 (Image)