1945, not issued: 1 penny Hitler, grey with overprint \"Austria\" so-called I. Vienna provisional issue, inverted overprint - only so existent, position 37 from plate I, mint never hinged, faultless condition, very rare stamp, signed fresh, Sturzeis with photo expertize, Wallner and photo expertize Roger Soecknick BPP \"genuine and immaculate\", large Austria-rarity! Hardly once brand on offer!