1867 (Nov. 14) Detroit Mich. to London, England, red "Detroit Am. Pkt. '3 Paid' Nov 14" exchange cds on cover bearing 24¢ lilac (78) tied by small grid cancel, carried on Allan Line Peruvian from Quebec Nov. 16th to Londonderry arriving Nov. 25th, red London Paid (11.27) arrival cds, F.-V.F., a scarce Detroit exchange office use. Estimate  $300 - 400. The Allan line sailed from Quebec or Portland to Liverpool via Londonderry. Portland, Chicago or Detroit were designated as the United States exchange office. $0 (Image)