1 Mark Gelber Hund, variety \"inverted overprint\", impeccable mint never hinged, very scarce variety - particularly since in this quality, photo expertize Michael Jaeschke Lantelme BPP (2023) : \"in faultless, mint never hinged condition. \", Michel 15.000.- - in the considering the few mint never hinged known examples seems the catalogue value as very moderate and reservedly selected!