Souvenir sheet issue "for Berlin 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 Allgaeu, cancelled "Berlin Neukoelln 4.1.50", photo expertize Schlegel BPP "genuine, defects at the souvenir sheet are indistinguishable. ", Michel - .