60 Kopeck postal stationery envelope with the overprint "PLESKAU 60 Kop", with a postage due of 20 Kopecks and 30 Kopeck stamps with the same overprint, cancelled "NCKOB * K * / -7 10 41", flawless condition, certified by Bohne GPSY, Dr. Rommerskirchen BPP and photo expertise by Robert Brunel VP "The condition is flawless."