12 Pfg and 24 Pfg worker with ribbon type overprint, Munic postal forgery, perfectly mint never hinged. during the validity period of the stamps (1948) were dishonestly to the detriment of the postal service sheet of the 12 Pfg and 24 Pfg row by row by the counterfeiter with imitated ribbon type overprint type I provided. expertized H. G. Schlegel BPP with photo certificate copy (for former block of four), Michel 800.-