Livingston Fargo & Co. Blue company frank with "By the American Express" routing at bottom (Haller FL6), on 1853 3¢ Nesbitt entire Fort Delaware, Del., entered the mails with blue "Cincinnati, O." cds; cover with some light toning and missing backflap, Fine, a rare express usage. Scott No. U9  Estimate $300 - 400. $0 (Image)