12 Pfg numerals with variety "glued paper web" with right upper corner of the sheet and rotary printing upper margin, vertical pair with normal stamp, mint never hinged, slight manufactured gum faults are enclosed all known pieces of this variety before and are to tolerate, the upper stamp official - probable through the printing plant - with blue pencil nullifys, extremely rare, photo expertize certificate engineer High man (2016) ". . . Mint never hinged. . . . The stamps are genuine and have original gumming. The condition is perfect. ", by Michel with the 12 Pfg value unknown