80 Pfg Germania with overprint \"Sarre\" in type I, block of four from rotary printing under margin (separated), each stamp with overprint error - included are the overprint error A (2), L and QI, in perfect condition mint never hinged, expertized, photo expertize brown BPP (2017) : \"the quality is perfect. \", Michel 3.600.- (free of premium for the scarce unit! )