Souvenir sheets issue "monetary reform vitims" with plate flaw II in properly franked mixed franking with 5 Pfg green overprint on air-mail registered letter to Durlach in the Allgäu, cancelled "Berlin Neukölln 4.1.50", photo expertize Schlegel BPP: "genuine, defects at the souvenir sheet are indistinguishable. ", Michel - .;