20 Kopecks and 60 Kopecks on postage exceeding tariff rate registered letter, cancelled by cancel "PCKOB * K * -4 3 42" and "PCKOB * a * -4 3 42", Michel number 15 B with plate flaw II "Colon behind KOM (Feld8) ", neat opening defect above, slightly foxed, unsigned, photo expertize Robert Brunel VP (2025), Michel 600.-