1946 - 1948, four-volume special collection ( 3 albums with unmailed sides ++ stockbook), numerous Aspects of this issue considering collection with interesting documents, sheet counting numbers, plate flaws, perforations, colour shades, with also the top piece Michel-no. 22 printers mark used with photo expertize Schlegel BPP, many contained pieces accordingly expertized, the catalogue value amounts over 30.000.- Euro, please check carefully!