60 Kopeken postal stationery envelope with "PLESKAU 60 Kop" overprint, added 20 Kopeken and 30 Kopeken definitives with identical overprint, cancelled "NCKOB * K * / -7 10 41", perfect condition, expertised Bohne GPSY, Dr. Rommerskirchen BPP and photo expert report Robert Brunel VP "Condition is sound."