1871 (Feb. 18) Detroit Mich. to Perthshire, Scotland, red "Detroit Paid All Direct Feb 18" exchange cds on cover bearing 6¢ carmine (148), cancelled by neat circular grid cancel, carried by Allan Line Moravia from Portland Feb. 19th to Liverpool arriving Mar. 2nd, Liverpool Paid U.S. Packet (3.6.71) arrival cds, reverse with Sterling (3.6) and Callander (3.7) transits, original 1871 enclosure, 6¢ couple tiny perf tears, F.-V.F., a scarce Detroit exchange office use. Estimate  $200 - 300. $0 (Image)