Mexico, 1908, 2c Postage Due, Specimen Punch. Upper pane of 80, mounted on signed fine linen cardboard, each stamp with rhomboid security perfin, plate plate number "000001 BC 010000", manuscript "1907" date in top margin, Very Fine, a unique archival exhibition piece. Scott No. J2  Estimate $750 - 1,000. $0 (Image)