6 Pfg first issue of stamps for Germany after WW II., German printing, type BZ, at the bottom unperforated with lower margin, clean round cancelled "RENDSBURG 12.10.45", right above a perf shortened and reverse in the lower margin scratched, very scarce perforation variety and spectacular new discovery, new photo expertize Dr. Koch VP (2018), by Michel in cancelled condition unknown, the rest known perforation varieties values by Michel between 1.700 and 2.000.-