20 on 3 Kop. and 20 on 60 Kop. on postal stationery cover, cancelled by Cyrillic cancel "PSKOW -k 6 10 41", the scarce Michel number 3 (edition 757 piece) from left margin of sheet, no postal transport, rare in this form, signed Dr. Rommerskirchen et alia and photo expertize Gerhard Krischke "the condition is perfect. ", Michel 1.635.-