Indistinctly signed
Unknown animal painter
Wetzel, FW
Unknown draftsman
Peiner, Werner (1897 Düsseldorf - 1984 Leichlingen)
Buschmann, Hermann (1875 - 1961)
Mundinger, Friedrich Wilhelm (1893 Offenburg - 1965 Remscheid)
Di Scala
Lorenz, Carl (1891 Berlin - 1978)
Hauth-Trachsel, Dora (1874 Zurich - 1957 ibid.)
Wallert
Malik, Paul (1890 Zielenzig - 1976 Potsdam)
Scharl, Josef (1896 Munich - 1954 New York City)
OK Interrupt