Charleston, S.C., 5c Blue, 5c Blue on orange (16X1, 16X-U3 cut square), former unused, clear to large margins showing portions of two dividing lines, small faults, cut square measures 25x28 mm and shows portion of Charleston, S.C. May 5 double circle pmk. (Scott retail for used entire $1,250.00, cut square unpriced), former fine appearance, Scott retail $700.00+