U.S. 3¢ dull red #26 tied grid with matching dc postmark of CHARLESTON / S.C. // MAR / 1 / 1861 on cover to Mrs. Miriam F. Kennard, 6th between I & K Streets, South Boston, Mass. with Boston carrier backstamp dated March 5; left flap detached for display.Unusual and scarce Confederate State Use of US Postage. [SC] [MA] $325.