10 Kopecks answer part the postal stationery P13, with overprint "Pleskau / 20 kop" and additional franking Pleskau Michel number 10 x, black hand stamp overprint, cancelled by cancel "PCKOB * K * -8 12 41" very fine, photo expertize Robert Brunel VP (2025) "the condition is perfect", expertized Dr. Rommerskirchen BPP