30 Kopecks registered postal stationery with overprint "PLESKAU / 60 kop", black hand stamp overprint and additional franking Pleskau Michel number 7 and 8, addressed, cancelled by black cancel "PCKOB * K * -27 9 41" and "PCKOB * a * 27 9 41", cancel and registered postmark genuine, sound, strong overfranked, photo expertize Robert Brunel VP (2025) "the condition is perfect", expertized Dr. Schultz