Breckin Ridge, C.T., Feb 17, corrected cds (with offending letter "B" chiseled out) and matching target handstamp tying 1874, 3¢ green on cover to Windsor, Missouri; cover slightly reduced at right, Very Fine. Estimate  $300 - 400. This corrected date stamp enjoyed a long service. In later years, as it wore down, traces of the "B" began to re-appear. $0 (Image)