volum 3: from the contents:

Manz, PGH Effelder, Plastinol, Rheinhold Röder, Oehme Und Soehne, VERO, VEB Gruenheinichen, SISO, PGH Steinach, more makers from boats, Pfeiffer/Tipple-Topple, IGRI/Plastoton, additions, unknown makers, sculptors