1948 - 1990, mint never hinged, to printed form more then complete quality collection with all good values and issues from black overprint expertized Schlegel BPP, red overprint photo expertize Schlegel BPP genuine and immaculate, each stamp signed, souvenir sheet 1 expertized Schlegel BPP, 2 - 5 Mark buildings always close to the base signed Schlegel BPP and additional in the horizontal pair.