1867, 2¢ black, Z. Grill, Double Grill, strong well defined grill with second clear grill shifted downward, faint cancel, small crease and pulled perfs at right, about Fine appearance, a very rare variety which is listed, but unpriced in Scott; with 2000 P.F. certificate. Scott No. 85B  Estimate $200 - 300. $0 (Image)