5 R. On 10 Kop. Red lilac, overprint in type III, neat cancelled with mute stamp \"12 5 42\" and straight-line cancel \"Alexanderstadt\" on beautiful letter piece, great rarity, photo expertize Zirath BPP (2019) : \"genuine. Defects are indistinguishable. The perforation is for this issue typically. \", Michel 13.000.- - superb item of this rarity!