cover 3c Brownish Carmine (11), clear to large margins, uncancelled, used on very fresh amber cover to Superior, Wis., ms. "by Steamer Lady Elgin", clear "Received, for shipment by Str. Lady Elgin, (illustration of steamboat), as noted.......Chicago, Milwaukee & Lake Superior Line" large double circle h.s. (Milgram #763) (additional overlapping strikes on reverse, very fine, a fabulous Lake Michigan-Lake Superior steamer marking photo