1868, Queen Victoria Pence issue, 4p black, horizontal imperforate pair with clear double impression of the design, nice margins all around, no gum as issued, VF and according to the John M. Walsh BNA Specialized Catalog this pair is UNIQUE, illustrated on page 1114 of the 13th Edition, ex-Brigham, NSSC 4o, C.v. US$4,700 as two singles, Est. $3,000-$3,500 (Image)