Railroad Covers. Eight covers franked with 1869, 3¢ ultramarine; including Cincinnati & Louisville U.S. Mail Line corner card, blue B&0 R.Road handstamp (slightly blurry), Chicago and Green Bay R.P.O., few covers have backflap flaws or reductions, one has a portion added at the top, mostly Fine. Scott No. 114  Estimate $300 - 400. $0 (Image)