20 on 3 Kop. and 20 on 60 Kop. on postal stationery envelope, Cyrillic "PSKOW -k- 6 10 41" cancel, rare Mi-Nr. 3 (printing 757) with left sheet margin, not postally carried, rare in this form, signed Dr. Rommerskirchen and others, photo certificate Gerhard Krischke "Condition is sound.", Mi.1.635.-