(Route 11122) Str. Minnesota, printed scroll corner card on yellow cover bearing 3¢ ultramarine (113) tied by "Dubuque Ioa. Jul 14" duplex with quartered cork, addressed to Kingston Centre Oh., original printed letterhead enclosure "On Board, Northern Line Packet Co's Str. Minnesota" and dated "Tuesday, July 12th 1870"; carried to Rock Island to be put on the Chicago & Rock Island railroad east; cover reduced slightly at right, small red ink spot, Very Fine, Illustrated in Milgram on page 475. Milgram No. 899  Estimate $400 - 600. $0 (Image)