20 Pfg Germania with oval imprint in good a-color (2) in mixed franking with 50 Pfg Germania with oval imprint (2) being a correctly franked mixed franking on cash on delivery registered cover from A"ALLENSTEIN 24. 7. 20" to Lübeck with forwarding undeliverable return, cover strong cut in and franking various defects, photo expertize Wasels BPP: " rare piece"