KONTROLLRAT and BIZONE, interesting, mostly parallel in mint never hinged/mint and into collection laid out cancelled and in the Lindner form album, and others Kontrollrat, incl. all se-tenant combinations (mostly mint never hinged), ever into mint Michel number. 948 IMPERFORATEDLY from a right lower corner margin, Bizone with numerous ribbon/network overprints, incl. inverted, and double print 943 Z without watermark, IMPERFORATED into the horizontal pair, 947, Michel number. 30 dB and 32 aC mint never hinged (expertised Schlegel A. BPP), souvenir sheet 1 //c// with a cancel which is genuine but refused after course validity (certificate H.D. Schlegel BPP) and many more, look!