30 Kopecks registered postal stationery cover with overprint "Pleskau / 20 kop", black hand stamp overprint, with advertising slogan 04, with additional franking Pleskau Michel number 11 x (2) horizontal pair, cancelled by cancel "PCKOB * K * 30 12 41" and "PCKOB * a * 30 12 41", the registered postal stationery cover is correct franked, very fine, expertized Krischke BPP, photo expertize Robert Brunel VP (2025) "the condition is perfect