80 Pfg Germania with overprint "Sarre" in type I, overprint error A "in the middle vertical divided bar" with left lower corner of the sheet, in perfect condition mint never hinged, manufactured pre folding in the margin, expertized Dr. Dub, Burger BPP and new photo expertize brown BPP (2017) : "stamp and overprint are genuine. The quality of the stamp is perfect. ", Michel 800.-