1918, 2¢ carmine, Offset imperf, type V, horizontal pair. Enormous margins encompassing portions of adjacent stamps all around, rich vibrant color, tied by neat "Chicago, Ill., Jan 10, 1921" machine postmark on immaculate corner card cover to the Covel Manufacturing Co. in Benton Harbor, Mich., a Superb gem, a truly remarkable and stunning multiple usage of this very scarce offset issue; with 2006 P.F. certificate. Scott No. 533  Estimate $750 - 1,000. $0 (Image)