60 Kopecks registered postal stationery cover with overprint "Pleskau / 60 kop", black hand stamp overprint, with additional franking Pleskau Michel number 10 y, cancelled by cancel "PCKOB * K * -4 2 42" and "PCKOB * a * -4 2 42", enclosed receipt for registered mail No 966, the postal stationery cover is overfranked, very fine, photo expertize Robert Brunel VP (2025) "the condition is perfect