18 kreuzer yellowish orange with wide right upper corner of the sheet, in perfect condition mint never hinged, on all sides full to huge margins with complete cutting line left, color-intensely outstanding quality, expertized Gebruder Senf and photo expertize Brettl International Association for Philatelie Experts "genuine, mint never hinged, perfect", by Michel undervalued (hammer price on of our 171. For normal stamp = 360.-)